Should I donwload?

[LucasLumia]

Im afraid that something might happen to my 1520 because of the update. What do you think? Should I update? Or would I be better off waiting at least a few days?

 

[Muessig]

It's really up to you. It's a preview so there's always the risk that something might not work like it currently does. WP as a platform is pretty darn stable, though, and I tried the Black update when it was a preview and had no issues at all. I'm on the 8.1 preview and also have no issues. You can always do a soft or hard reset if something goes wrong...