I'm also voting for FreeWallet. Use it for three month already and never get any problem. Saved a bunch of money on fees. They offer 0% transaction fee for BTC inside there system. And outside fee also good. But it's not that good for little cheap coins, because the system does not always cope with the load. But support solve problems fast enough.
Before I used BitcoinCore, and I was OK with it, but now the commission is just incredibly big, to make a transaction the commission for a BTC is 15 bucks. Freewallet is way better