What are your experiences with these 2 services? I'll start:
Coinbase
It was a nightmare since the beginning, I created the account and I couldn't buy any bitcoins because my account "wasn't authorized" or some shit like that, I emailed them and never got a reply, I went to their forums and after a week finally someone unblocked my account so I could start using it.
It was fine for a while but then one day I had a few purchases already scheduled and and forgot to transfer funds to my bank account, when I realized that I figured no problem, I'll just add them now but guess what, they blocked my account and I got an error message while trying to purchase more bitcoin saying that I needed to re-verify my information.
I emailed them and as usual there was no reply (I don't even know why they have an email), I went to their forums again and there was also no reply, in fact they never really reply to anyone, their service is garbage, I got pissed and ended up transferring all my bitcoins to my Circle wallet.
Circle
They were amazing since the beginning, in less than 5 min. after creating my account I had already purchased my first bitcoins, their app works really well and I've never had any problem with them, in fact you can even chat with them on Facebook unlike Shitbase.
My only issue with Circle is that the purchase limit is too low, about $300 a week, with Coinbase it is $2000 daily. If Circle could increate their purchase limit and had a good marketing campaign they could seriously overtake Coinbase.
Does anyone know of other good alternatives to those 2? We seriously need some good competitors ASAP.
I still think coinbase is reliable, especially its referral system has made it quite attractive and there aren't any transaction fees when dealing with your wallet. Speaking of wallets, i actually think Blockchain is a much more simplistic and user friendly intereface out there; they have transaction fees but i think it's totally worth it.