Kucoin is one of my favourite Exchanges. Personally I like the UI and the ease of interaction with the charts, and trading options.
Withdrawals are quick with 2fa security but withdraw fees are a bit on the high side. Another thing I like is that withdrawals below a certain amount don't require kyc which helps keep users anonymous.
Kucoin has an active trading community so spot trades are filled almost instantly which is good. Also an active customer care from my experience when I lost my trading password. I give it 4 stars.