Shopify Marketplace Connect

Had Difficulties installing but got excellent support from customer care
Too early to say anything
So far so good

Newest Final review update; 8:32 am CST 12-27-2019 This review is in regards to a work-around for use with Amazon Handmade. There are a growing number of indications that there is a good work-around for Handmade inventory and price sync when the product is loaded manually on Handmade. A guide is promised and I will probably be back to re-install once the guide is published. Straight product to product seems to work fine for syncing inventory and price; variant work remains in progress. I am leaving the app with solid 4 stars. Good work Codisto. And Thank you.
Final review: 7:27 am CST 12-15-19 This app was installed so I could see for myself about an off-label use with Amazon Handmade to sync inventory with Shopify; answers from Codisto about this had been inconsistent so I decided to check it out myself.

Overall app review is 3 stars, but I will be happy try this app again in future.
I did not test the app with regular Amazon. If this is your situation, I recommend trying the app!
Support gets 5 stars as they are knowledgeable, have responded and tried to help me.
Ebay part gets 5 stars; it seems to work pretty well and I did not loose any data when I tested an inventory sync with Shopify.
Amazon Handmade off-label work around gets 1 star. Not yet ready for prime time. The inventory sync seems to work but at an unacceptable cost; there is a good bit more chatter going back and forth between Shopify and Handmade than I understood. The chatter produces with some serious results like erasing product descriptions, changing production times, removing category assignments and removing listings from the Amazon catalog entirely. And once you have synced your Amazon Handmade, whatever you do, DO NOT disable the offer as it produces some of the above consequences, I was told.
I will be following Codisto in their facebook group to watch for updates and will hopefully try this app in future when work around bugs are worked out or a definitive connection is made with Handmade. And maybe even the addition of Etsy.

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Update: 8:07 am CST 12-11-2019 5 stars for support with Noel. App is set up and seems to be working as advertised with a workaround for Amazon Handmade. The Amazon Handmade products (loaded manually on Amazon Handmade) have synced quantity with Shopify. The issue with Amazon Handmade seems to be the UPC which is not required on handmade goods. I will continue to update this review as the functions are tested. I really appreciate support working to help over the phone. This company clearly is interested in becoming a success.

Update: 7:09 pm CST 12-8-2019 Thanks to Noel, on the other side of the world, for helping with set up; 5 stars to Noel! There was a timing issue during set up which was explained well. And Noel was able to talk me through part of set up with Amazon which was most helpful. Codisto support is working with me at my own pace, since this app is way over my head. Situation is looking favorable for inventory sync with Amazon Handmade. And being able to talk on the phone with Noel is GREATLY appreciated. Now let's see how the app runs and works.
This will be a running review, updates at the top of the thread. App is installed, but not yet set up. 3 stars. Not for beginners. Information from support is conflicting at times, so am trying the app out to see for myself. My need is to be able to post all my handmade items for sale on all my channels and have the inventories synced back through Shopify so I don't oversell. Amazon Handmade is an Amazon outlier with respect to most apps. I have received info from one support person who says that if products are listed manually on Amazon Handmade, they will sync back to Shopify to keep inventory straight. This remains to be seen.
This morning I processed a return/refund on Amazon Handmade and then got a new identical paid order showing up on my Shopify hub coming from Codisto; pretty sure this is a glitch, as I cannot confirm the purchase on Amazon. Inquiry sent to support who has been responsive so far, though probably in a different time zone.

Excellent so far. Helpful, friendly and polite support team, great functionality and a great price. Can't really ask for much more!

works great. they have a very good customer service team. i would recommend using with Google Chrome browser for best results.

Great service and app. Really enjoyed working with it makes life so much easier

Codisto is extremely easy to use. The integration with the various platforms makes getting our products listed faster, with saves us a lot of time and money. Their customer support is excellent as well. The agents are knowledgeable, friendly, and very helpful. If you run an eCommerce business and sell on various platforms, like we do, this app is a MUST-HAVE!

Finally an Amazon & eBay integration app that works! Plus I can list on US, UK and Germany for both marketplaces. Feels like Christmas and birthday together. Been selling for many years, tried lots of multi-channel apps but always been disappointed before now. Easy to use, performs well (fast to list, inventory in sync!) and I love that I can map my own values to the marketplaces (attribute mapping). Never seen an integration app as extensive and fully featured. Definitely recommend yes, yes, yes!

Amazing fast service. I had to contact them several times and got an answer lightening fast. A definite must.

Support is useless, this app wont even let you pick a subscription. We are trying to give Codisto money and they dont seem to want it.

grande assistenza in tempi brevissimi
l assistente mark è eccezzionale ....sono molto soddisfatto del suo lavoro non è la prima volta che soddisfa tutte le mie esigenze