We have it - hard to be subjective on it because if it works you cant really know if it is because of the active seat ability or just because of the seating position in general. When I have driven long distances with it on, I've never had a back ache when arriving, but the same is true if I have been in the passenger seat. I have some back issues from an accident and I am sensitive to seating - not that bad seats bother me much, but I definatly apreciate good ones, and in that regard the active seat makes no difference to me.

As far as how it feels - It is very easy to notice if its on - feels like someone is alternating trying to shove a fist through each of your butt cheeks.

Ultimately though you can just turn it off if it bothers you. If it was a standalone option I would not get it because I dont think its needed seeing how good the seats are.

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- Ravenheart