Hi all! Please tell me brothers that GainBitcoin is a good choice to mining?
Lol, your withdrawal is pending from a scam website and you are asking whether another scam website run by the same owner is a good choice or not. You really want to get scammed, ain't you

Gain Bitcoin is an elaborate scam, you will get paid for the first couple of months, then no more payments, scammed.
https://bitcointalk.org/index.php?topic=1440600.0