I saw everything but a wallet. Safety? I don't know, since you don't own what you deposit.
Another negative thing I saw is that you need a phone number and email to register. I saw more of a business than a wallet itself, although the "wallet exists".
I think they are more cons than pros.
And if you are looking for wallets I personally use and like Muun. Anyway investigate, I leave you a link to a list of Lightning wallets