Love my blue 350 so much... that now the screen is dying i've bought a brand new one to swap out the internals - and if i was in Canada i'd probably get another backup for $50 just in case!
I did the prs+ so long ago.... changed fonts to Fontin slightly larger pt size - lovely. That is really the only two complaints i could have with the 350:-
1. Rubbish installed font (way too light a line, ugly)
2. Hopelessly humongous jumps in point size between 'S' and 'M'