I agree - the integration is at best - clunky - and not very efficient. I also had high hopes for this application but I currently have about 100 payments that are "stuck". They are showing as scheduled for prior dates but they haven't gone through at all. As for customer service, I found the chat to be available but very slow on the responses as well and I was told that the issue I have has been escalated to the compliance department in Tel Aviv and so I can expect an additional response in several days. 

I also have issues with the ACH payments not being cancellable/reschedulable when the payment has been rejected or vendor has entered their bank information wrong.

The timeliness of response/resolution is adequate.

I'm extremely disappointed that these issues weren't worked out BEFORE releasing this feature.