Is Changelly a good app?

Hello there, I'm curious to know your thoughts on Changelly. Is it a reliable and efficient app for cryptocurrency exchange? Are there any security concerns or fees that users should be aware of? Also, how does it compare to other popular crypto exchange platforms in terms of user-friendliness, transaction speed, and range of supported cryptocurrencies? I'm considering using it for my next crypto trade, so I'd love to hear your insights.