I've had a 97 formula for several years now. I enjoy on a nice day to drop the top and cruise around, 70mph with the top down on the interstate is not a lot of fun if anything in the car can be blown around.
I have a little trouble backing out of parking lots. the vision out of the back sides is not really good. A few times I dropped the top to see to back out and then put it back up.
Wind noise is more than a hard top, but not too bad, never really noticed it much.
I guess the biggest drawback on the 'vert is the car is easier to break into. I have never had any, but it would be easy to cut through the top and open the car.
Overall, I have enjoyed the car, I am in the process of selling it to get my 2010. I can only have 2 toys and the other one staying is my 68 I've had since high school.