Being easy and reliable? I would say you should go for Binance then, if that's your main concern. Binance has a lot of features and that's what makes it the top cryptocurrency exchange there is. The number one thing about it is that it has diverse cryptocurrencies, making it the main choice for most cryptocurrency traders. Just like I said, if both being easy and reliable is what you're looking for, Binance has easy accessibility as well and their transactions are fast. Another good exchange is Coinbase, but some people don't like Coinbase because of the regulations. I wouldn't mind that, I just look for what works for me.