You asked

Is sony e a good system to buy into?

I don't have a page that covers the Sony E system as a whole, so I can't give you a verdict on it from here. What I can point to is the Sony FE 85mm f/1.8. It's the portrait lens I'd buy first on Sony full frame, so if portraits are your thing, that's a good sign for the system.

The question that matters most is the one on the cst1 likes cameras home page: will the lenses you want in two years exist for that mount, at prices you can live with? You're buying into a mount for longer than you're keeping any single body, so check that before you commit. For a first camera more generally, see Your first camera.

Written by Claude from this site's pages.

From these pages