Great addon. Using Proton Pass together with other Proton services for many years now. I couldn't say anything wrong about it. I trust Proton with all my secret data. I do admire constant development of the services. Never let me down.
Go ahead and give it a try. 100% reliable.

No issues. Good interface, has all the features you'd expect and works like a charm (and I consider myself kind of spoiled after using Bitwarden for years).

its a very user friendly platform. very well done. usually you have to sacrifice a lot of convenience for privacy, but not with proton.