If I keep it long term I may consider the net audio upgrade (I just looked at their website). I did have a 33/303/FM3 set about 12 months ago that I kept for no more than a week (bought via the local paper for £50!), as it sounded quite lifeless and flat, but having heard this 33/303 I would guess that the other one desperately needed a service! This latest pair is seriously good!

TBH I only bought them as I figured I could play with them for a few hours then sell them on at a profit to fund my LP12 upgrades, but maybe I'll hang on to them a little longer......