IMO, you are not going to miss anything. It's mostly just some SW gimmicks.
On most sonys camera isn't any better (or worse) than other phones. Unlike their real cameras.
Audio is crippled just like on most other devices becuse of that stupid regulative from a few years back http://europa.eu/rapid/press-release_IP-09-1364_en.htm
And for sure, it can not be worse than on original Jolla.