After much test driving and comparing and contrasting the S2k was the top dog. If you are looking for a roadster, this is it. Cars that I drove: Z4,Z3,Boxter, Solstice, Miata,Corvette. I could not bring myself to buy the boxter and the difficulty to work on the engine and parts. The Z3/4 were fun, but lacked the soul of the s2000. The Miata was almost along the s2k, but I was already trying to figure out how to make it be like a s2k after I bought it. Solstice I wanted to throw up afterwards it was so bad. Corvette too flashy.
All in all, I get compliments on the color, the car, etc. on a daily basis. I have the suzuka blue which on pictures doesn't look great. But in person it is incredible. Watch out when you drive in the rain though, this car will really fish tail on you if you are not careful on the curves. I am 5'7 and weigh 180. I fit perfectly in the cockpit. You can shift gears at low revs, or punch it through the wall till 8500+. When you hit 7000 rpm you think that it can't go further, but your day is just beginning.
Drawbacks: Rainy days, slow cars in front of me, speed limits, PREMIUM FUEL. Rear visibility with top up is terrible when backing out, thus put the top down. Cup holder is in the worst place possible. I am constantly looking for excuses to go driving on a daily basis. I like the fact that all you do in this car is drive. Leave cell phones, mp3 players and any baggage behind and have fun. This is my daily driver. Put on a good set of exhaust pipes and it transforms the sound experience.