Not sure where the negative reviews left here are coming from. I've been using crypto.com for years now, including the exchange and phone apps. I think the apps and the exchange are very user friendly, and transfers between the exchange and wallets are seamless and simple to do. I've transferred money back out to my bank with no issue on several occasions, used the customer service chat twice now, once because I needed my 2fa reset after changing my phone and more recently as a dodgy transaction caused my cdc card to not top up successfully. Both times I received an immediate responce from customer support and both times the issue was resolved without any hassle. Yes, as some people have said the deal when selling on the phone apps is expensive, this is due to spread and can be easily avoided by buying and selling on the exchange, where fees are literal pennies.
