Electrum wallet is good.and the fee is not bad,but i don't feel comfortable to keep my bitcoin in cold storage,i will only use the wallet for a while and then move them to exchanger.
After bitcoincash split, there were too much rumors about electrum. Then I totally quited from it. I'm using bitcoin core on my desktop and using blockchain.info for mobile purposes. In blockchain.info, I don't hold bitcoins, just using for transactions.
I Used Electrum For A While And It Is A Great Wallet But Lately I Have Been Really Liking AirBitz, Has Some Great Features, Good Design, Good Security, Works Across Multiple Devices, And Has A Nifty Built In Directory.
That Said I Am Really Looking Forward To The Beta Realease Of Samourai Wallet Which Is Doing A Lot Of Innovative Things In Terms Of Privacy And Anonymity.
At Present I Use AirBitz And Trezor. Never Had Any Problems And Gotten Questions Answered Quickly With Them. In My Book, They Rock.