Could have more upsell/downsell features... and an after sale upsell/downsell feature would be nice..
It has got me a lot of additional upsell sales though, so I like it.
I have since moved on to a more flexible app, but I have a lifetime license for ultimate upsell so I'm sure ill be using it more in the future.
Easy to assign the same add-ons to multiple products. Difficult to configure with ajax pricing for us at least. Overall it looks and functions good.
This app was recommended by a friend and I'm very impressed with all the tools available, the well thought admin page and the stellar support. As a new app there are a few things to fix here and there, but the support community via Slack is awesome and very prompt to tackle these issues.
I've only been testing the app for a day but will come back with an update when the trial week is about to expire. Right now it definitely looks like a keeper.