I'm eagerly awaiting jmp.chat to branch out into Europe (they have plans, but no concrete timeline).
I'm curious why not sipgate, which I currently use, or Twilio which I half-use (it mostly forwarded to my own Asterisk server, which needs some attention).
Do you have any specific issues with Sipgate? I only have a couple of numbers with them and don't use them much but am curious what their reputation is like.
I can't say anything about sipgate's reputation, as i haven't used their service. It just has been an issue with limited service availability in my country (BE)..