This was the only app I could find that had the functions I needed. We used it for months, albeit with some issues that we found work-arounds for. However, their latest update has caused major havoc on our store. The functionality has changed, and seems to be glitching randomly. Unfortunately, their technical support has been slow and unhelpful.
I'm sorry to hear that. We encounter some issues with our technical support last weeks. If you still encounter an issue with our app please let us know. I will be glad to do my best to help you in the future.