My experience was a total dislike though I'd assume like anything bike related the tech has gotten a lot better with time. I found on really hard hits the seatpost would move but the muscles in my leg were already tight trying to turn the cranks and the sudden change in weight made my knee hurt. My only suspension stem experience was 20 years ago and on a mtb and the motion of that stem could make it feel like I was being launched over the bars at times. Might work better with a road bike but might not be fun with the deeper then you realized pothole on a gravel road.