My card was charged twice by Glory Traders (glory-traders.com) on the same day. I had to dispute it with my bank. Glory Traders (glory-traders.com) then froze my account and said I had a negative balance because of the chargeback. They created the problem and then punished me for it.
Pros: Multi-device support|Good mobile app|Personal attention|Excellent charting
Cons: Research section could be deeper