Poloniex is a solid "big exchage", it has many indicators you might need to trade with, they've got an API system to help you out with automating your trading and, not only they have a KYC process, but a very strict one, which in my opinion is good in order to preserve safety. There are also many coins over there, and, really needed feature, margin trading. No need to say more about it, not enough exchanges with smaller coins implemented and seeing Poloniex have it is great.See full review