Well? who likes em?? and why?
Despite the odd feeling of sinking when you mount the bike I like them.
I would rather keep the shock from hitting the fame (front shock forks) but if it does the seat post shock is nice.
This was my luxury ride a few years back and it had a seat post shock as well as front shocks.
It was like riding on air ;-}
That build had the Nuvinci fully programmable DEV shift kit on it, hence the bag on the back for the electronics.
Anyway, if you want a luxury ride, a seat post shock helps.