It's free. Has low fees. And totally secure. Been using my bitxoxo wallet for 3 months and no complaints for now.
Simple but best mainly more secure compare to other BTC wallets. I've been using it to store all my coins.
So far I managed to buy 25 USD without verification - received my Bitcoins within 10 minutes. Easy & fast!
I was using Bitxoxo for 6 months but i didn't like it, so i went back to mycelium Wallet.