My two cents--I was pool mining on Suprnova but the first payment never went through. I'm carrying the rest of the balance on my Suprnova account until it does; they said they were having server trouble a few days ago and that it was fixed now, but the transaction still can't be found in the blockchain, so not sure what's going on with that coin. Not knocking Suprnova on this one, everyone I've spoken with about Electroneum has had issues so I think it's just not a reliable mining option right now (at least as far as I can tell, I tried a couple other pools as well and no love). *shrug*

EDIT TO ADD: my link to suprnova's electroneum pool seems to go nowhere now. Hmm...