I play on FT as well, moved over from Party about a year ago and never looked back.
Pros:
Great software... clean look, good features, aesthetically pleasing. Makes it easier to read pot/bet sizes. A bit cartoony at first glance, but customizable.
Smaller "fish factor", IMO. Both pro and con I suppose .. but good for improving your game.
Cons:
Coming from Stars, you'll prob be a little disappointed with the tournament offerings at first, but they're getting there. Fewer structure offerings and smaller payouts, but also proportionately smaller numbers of entrants (which could be a good thing if you don't like always having to get through 1500 people to win money).
Smaller player numbers (typically 15k+ during peak vs 100k+ on Stars). Not a problem during peak, but sometimes later at night Sit N Gos above $20 have trouble filling up.
All in all, I would recommend it. For whatever reason, I enjoy my overall
online poker experience more at FT than I did at Party. I've dabbled over at stars, but can't stand the look of the software... just personal opinion.