Nexo is a great wallet, easy to use and with very good plans and interest.
Most tokens are available. Of course, you will have more advantages if you have NEXO tokens but, if not, that's also ok.
If you have 10%+ of your wallet in NEXO you will be Platinum and have up to 12% on stable coins, for instance (if you agree to earn that in NEXO tokens).
You have a limit amount of free withdrawals, which can go up to 5 per month (when Platinum).
I believe that the Android app is mainly a webview.. some navigation and UX is weird sometimes because the app is not fully native. Also, some security features are missing. As an example, all banking apps hide the content when in background (if you open task manager).. Nexo does not do that. Of course, if i try to open it requests for authentication again but anyone could see my balance, for instance.