I purchased the Cayman to replace our '05 SLK350 and drive it primarily on weekends. I test drove most of the competition as well as the Cayman S and 911 Cabriolet. For me, the Cayman has the perfect blend of style, performance, efficiency and value. Sure, there are times when I think I could use the extra hp but those times have been seldom. Although some will tell you that they prefer the more "classic" line of the 911, I think the Cayman is in a style class by itself. Just hand the key to any valet if you need confirmation. If you want a livable, fun to drive two seater, I don't think there is any car on the market that can match the new Cayman.
This is the first Porsche that I have fit into, barring the sunroofless GT3. I have been in a sports car-less funk since I sold my '95 Miata R-package. The Cayman is the perfect replacement. It is a comfortable daily commuter with absolutely brilliant handling and perfect suspension tuning. The 2.7 liter six engine is an absolute gem, very flexible and aurally pleasing. It is also very practical with both trunks and cabin storage.
In everyday driving the Cayman is civilized, comfortable, and easy to drive. When the traffic thins out and the road opens up, it takes on a whole different personality, gobbling up twists and turns with the engine roaring like a savage beast. After a month I still haven't really used the Bose sound system. The sound of the engine is even better music to my ears. Now that the break-in period is over, I can savor the sounds of the upper rpm range... sweeeet!
This is easily the best overall perfoming car that I have owned. It feels quicker than my BMW M3, except from 70 mph up. Its handling outshines all (for the money) except the Lotus Elise, but the build quality and sound from behind you more than make up for any performance difference. The ride quality allows for daily driving without punishment. Additionally, the manual transmission is wonderfully weighted and precise.
We have had this car for about a month. It is much faster than our '06 Boxster. The engine sounds great. We have an automatic, which makes it a bit of a gas hog, but it shifts quickly and rockets away from the line.