After a 3 hour* ride today in scorchio conditions I can report ...
that my butt still hurts! There is a little more cushioning with the cover but nothing to write home about.
The cover allows a nice draft between bits and seat and the Crown Jewels were kept cool and even after a few hours in the heat today required none of that one handed traffic light dance to adjust the positioning of said jewels.
There is also definitely less sliding toward the tank, if any
I never found myself repositioning on the seat which I would normally do a few times on a ride.
So worth 23 quid? Yep! just for the gentle
twixt seat and self.
If you find you end up sharing most of your rides with Betty Swollox and would rather not then one of these may well be the answer.
*3 hours in the saddle but with tea break halfway.