CPB ‑ Custom Product Builder

I would really like this App to work, unfortunately bugs keep showing up. Unexpected glitches suddenly appear: pages with errors, items show up as out of stock when customers try to add to shopping cart, etc.
The developers are quick to respond that they are looking into the issue but over a week has passed and no solution. We are losing sales.... even though the developer keeps charging their $ ...

Support is atrocious. Lots of bugs and things that don't work correctly. When trying to get aide or help, it takes DAYS before a response, which is wayyyy too long when your whole store runs on their app. When you do get help, you get moved from person to person. Have had an issue persistent for weeks, and it still isn't resolved. I installed and setup from top to bottom another app by the time I ...

I uesd the app for 4 days, didn't work like it should. Waited on support to fix the problem, just kept getting passed around, but yet they say there is 24/7 support.