An answer to this question will be a function of what you hope to get from the trading platform and that which you intend to use the platform for, either form volumes trades, aggressive trades or a conservative trade based on their terms and what they have got to offer, considering several factors, you are goin to find out that non of them have got it all, the have their various short comings at some point but if you are able to have them meet certain criteria depending on that which you intend achieving with the casino then you can give them a trial. So when picking a crypto trading platform, here are few factors i think you should put to consideration. The security of the platform, The security of such platform, their policies of which you can literally find in their term and conditions, you should also check for their payment speed if its one that's okay by you and also their licensed if its such that is allowed within your region or country, so if they fault in any way you can be able to take legal actions against them. very importantly make sure not to store your assets with them, if possible when you finish trading, send your assets to a safer wallet to avoid been hacked. you can still DYOR and try out what fits your need but know that there's non which will have it all but will have o very good percentage of that which you require of them so literally there's no very bad crypto trading platform but poor once and there are those who are the top too you can pick from them.