Sorry about your problems - on my XA2 it's been just working fine for a long time now.

Except the Camera, what are those issues you're aware of?

Also, what SFOS version are you on?
Some Android issues were ironed out in the latest update (4.3.0.12), at least for me.

And "There's a lot of Sailfish apps that no longer work" - I assume you mean Openrepos' apps, mostly? This statement would require more words.