BOLD Upsell AI Powered Upsells

Initially I thought this app was good but after using for about 6 months or so I have noticed that somehow some customers are landing on a 'duplicate' item page and when they do this it is shown as a blank page saying 'product is not available' and when they do this they tend to leave the site. I presume the duplicate products must have been picked up by search engines.
When I contacted for help ...

App works well but its money grabbing, basic subscription cost 9.99 a month which includes 200 upsell views but if you want to increase the views you have to play at least double, why?

Once the code is installed there is no maintenance needed for this app yet you want to charge me for more views on an app I have already paid for and continue to pay for on a monthly basis.

Not recommended.

Issues:
- Expensive ($708/year).
- Adds 33kB of Javascript to your site, as much as the entire jQuery library.
- DOESN'T WORK WITH AJAX carts if you want it to be triggered on checkout, it only works on "add to cart".
- bad documentation!

Cons:
- easy to install and setup
- works great if you don't use ajax carts
- nice reports

Bold Apps are completely unreliable across the board. You just never know when they will be down. Never. Know. :(

Stay away from anything made by Bold. They are totally awesome apps . . .

Until they break.

Which is way too often.

(BTW, we're waiting through the latest failure right now - "Working on it" they say.)

EDIT: We are raising this review one star for the personal response from Bold ...

It crashed and all bold app stopped working on Black Friday. And it certainly need lots improvement, there's lot bugs need to be fixed. I don't really understand where all these 5 starts come from.

Initially I had challenges with getting the upsell window to fire - needed a code hack. The Bold support team kindly installed for free and helped me with my questions. It now gives me upsell windows which is great. If I could do BOGO with this app then I would have given it 5 star Buy one get one free is pure and simply upselling, so should be included in Upsell.
Subsequent review downgrade - ...

I used Bold Product Upsell for about a year. Every day that it was installed, I was hoping they would either fix the defects, or something better would come along.

This upsell app has countless "leaks" - that is, if customer adds an item to cart, there should be two choices once the upsell is offered: a) YES - add-to-cart; b) No Thanks.

None of this "continue". And the redirect at ATC should be ...

Incredibly fiddly, can easily stop working for absolutely no rhyme nor reason and unfortunately we found this to be a bit of a cheeky way to extort money out of Shopify store owners. This simple app should really be including in the "Product Discount" app. Really this app is useless for most store owners unless you also buy Bold Apps' "Product Discount" app which we think UK Trading Standards ...

The app conflicts with Google Analytics and other checkout apps such as Pixel Perfect (Facebook Feed). So your Add to Cart upsell popups will only show for a second and then disappear without any user input.

I've just spoken to support and that was their explanation for why my ATC offers were not showing properly. They said I'd have to uninstall the others in order to use Bold Upsell ATC. So I ...

For what you pay the support is terrible always making you wait. They respond and say yeah yea we understand your concerns but you'll have to wait for our guys to help you. March 21st last heard after weeks of going back and forth. It's a new month April and still no support. I don't think this app because 95% of our sales are mobile phones and the app is mumbo jumbo on mobile phones the text is ...