I used Blocktrades for converting HIVE to XMR. They were one of the few who supported XMR. I have found some other quick-swap sites that also support HIVE and XMR, so I'm not stuck. But I'm still disappointed that Blocktrades had to close their exchange.

I use Ionomy, too. I have been using Ionomy ever since they added HIVE. I have no complaints about them. The once or twice that I have had issues with them, the issues were taken care of in a reasonable amount of time. I highly recommend.