It is a pretty awesome experience at the top

When I got to visit the tower, a colleague found the wind induced sway at restuarant level very unpleasant and to add the rotation to the mix was almost too much for him... I was enjoying the experience too much to notice trivial things like motion sickness

I went there 3 or 4 times for events laid on by a comms supplier, maybe late 90's or early 2000's. Some sessions without revolving and others where we sat for lunch with the top revolving. It is a great view out and definitely a pleasant experience.