I've done about 150 or so transactions with them over the past two months. I've had issues with 2 transactions being delayed (one four hours and one is going on 3.5 days now) and I have an open question regarding a discrepancy in my account balance that may be my issue or theirs, not sure.

I've probably opened 10 or so issues / feature requests with them. Their support seems to respond in 3 days to two weeks. Their ticket system makes it hard for me to look at my open tickets. I have to search through emails so these are estimates.