Because there are wallets that are restricting transactions coming from gambling sites like coinbase, that's why most of us are into blockchain.info and this is one of the best.
The only thing that i don't like on blockchain.info was their mobile version of their wallet. Because it can't take a screen capture on the wallet which i found not friendly to me because i can't take a picture my private key and wallet ID out of it, I'm forced to write it down which is time consuming and difficult. But this feature is security purpose. You can add electrum wallet as a gambling friendly since it can send transaction on different wallet at one transaction, So it means that you can send on multiple wallet casino at the same time.
I did tried it for something and it made me look like a kid and I was very happy to use that. I keep on playing that screen capture for the QR code of the wallet that I'm going to send my funds. Are you sure you are taking the picture of the right thing? I haven't used electrum yet but I've seen a lot of people that loves to use that.
electrum is a good and recommended wallet like mycelium and i am having good experience in the past with electrum but since i use mycelium, i leave electrum in my android phone. i think i am prefer with mycelium than electrum. if you have difficult to write down, then i think you can use another apps to help you like using whatsapp to write down your wallet address then from whatsapp, you can copy paste your wallet address to your electrum.
I haven't used mycellium yet but I am reading a lot of reviews from it and it's one of the best wallet that old bitcoin users are suggesting. But I will going to keep on sticking with blockchain.info, I prefer to keep on using this online wallet.