This is market research.
What do you most love about your favorite exchanges?
What are some things that suck about an exchange, what's your biggest criticism?
What would you like to see? This can be anything. Features and functionality, community related, Nintendo entering the market, spaceships, strippers, whatever.
i use bittrex and i love it because it is fast and easy to use with nice charts with good information on it.
i don't like about exchangers in general is the fact that i can't really trust any of them these days, because of what their counterparts (like cryptsy) did
i also like easy to use API and also fast responds from their server with no lags.