and while I think the ground pound is quite useless its strangely satisfying getting a kill with it.
http://xboxclips.com/Loginius/63d5a088-fa89-47e3-a2fe-649c9f9c6300
What I like about ground pound is that it also promotes vertical play. It really gives me more of a reason to assume higher ground.
It does not feel gimmicky at all.

BOOM!