This looks really good !
The one thing I'd love to be able to do, although I have absolutely no idea how we'd get past the centralisation issues it could cause, is to be able to just send a fiat bank transfer (preferably from GBP, simply because it's where I am) and buy HIVE or HBD directly. Or pay by debit card.
At the moment, it's a case of sending fiat to a centralised exchange, buying BTC, LTC or similar, then converting it within BlockTrades. It would be wonderful if a 3-stage process could be simplified down to a 1-step one !
Have you ever messed with https://global.transak.com/ ?
You can buy HIVE with a CC there, but still not able to sell it. However, you could always swap to something like BTC using https://stealthex.io/ and then withdraw that straight to your bank account with global.transak
I do agree though, that could be made much more simple and surely it will be in due time.