mine has sports suspension fitted (same set up as the S Type 'R' I believe) and also sports seats, she is sitting on 18" rims, I will completely echo both Carole's & Peter's comments, the ride is very stiff, with very little forgiveness over such things as speed bumps. personally I would have preferred a softer ride. something to consider with the ride height, its fairly low as it is, consider trying to get a trolley jack under her for any DIY jobs you will have some fun trying to!
I'll try and pop a photo of mine, I think the height is fine (but as others have said, your car your preference)
regards
Steve