Personally think dyno tuned cars drive horrible! but i cant disagree if your a number chaser this is the best way to get the power figs to the max.
I had my 321t mapped at scooby clinic on the rollers and YUK!!! it was a right pig if im honest, just not to my liking nothing to do with them.
had it remapped by Andy Forest it was a much better nicer car.
did the same with the Clio turbo rs tuning mapped it on the rollers, i didnt like it at all andrew carr mapped it on the road and every thing was amazing
obviously you cant load the car up as if it was in real life on the dyno but its great so high powered cars don't have to do xxx speeds
what i am saying i think its personal preference