Do not use Hash Miner (www.hashmining.io) for anything serious. I used them for about three months for small trades and it was okay. When I deposited a larger amount and traded more, my account was flagged, my withdrawals were delayed, and I was asked to explain my trading. They treat active traders like criminals.
Pros: Excellent charting|Clear documentation|Quick verification
Cons: Wait times can be long during peak hours