I'm finding I want something better built cos I can't hack rattles and intrusive noise everyday and like my cars to feel solid. However with solidity and refinement comes at a cost of boredom more often than not from cars in my price range (£7500 and under). Or crap reliability.
The Fn2 is as close as I have come to getting the best out of all the categories that are important to me, it's not the best built, it's not the fastest, it's not the best in terms on involvement/rawness and it's not the comfiest. but it does well in every category mentioned AND it's not crappy turbo! So where other cars were good at one thing and completely useless in the others, this one is best across the lot.
Never fancied a DERV in my life, nor have I been swayed to get a German yawn mobile (except the 328 sport which nailed it! But the 330ci was dull and unfortunately 90% of e90s are derv).
fn2 - only IF you can bear the harsh ride.