I think it has lot of potential, though it's not ready yet. I have only tried it once for like hour or hour and half myself 

I am having the same issue here. I have the URL and transaction list from my wallet to proof what i sent, when i sent and where i sent. I can't though contact him anyway yet :/.

Bitcoins will hit $1000 maybe in 1-2 years. i think. Difficulty rises so fast and soon theres no point minining unless you have something like 500GH/s.

ps. just waiting for my instawallet funds ;__;