A suspension post is great (I think) for mountain bikers.

Alot of comfort/hybrid bikes have them and often new-to-cycling riders, or those who will ride at low speeds around town seem to have them.

My mother has a suspension post on her hybrid and couldn't imagine anything else.

I have ridden it once and immediately hated it.

It depends what type of cycling you want to do. Look at the pros who do your type of cycling, or the type of cycling you are aiming for and see if they use suspension seat posts or not and that may guide your choices.

Ultimately, your bike is about you. If you like the suspension seat post, if you have a comfortable ride on it - then maybe thats what you should have.

The seat post is less likely to cause discomfort than the angle of your seat - get that right first.

Good luck