Hummer I-5 perspective...

[mall rated]

I agree that this engine is fine for the H3. Not great, but fine. Sure it is a little slow, but most folks won't buy an H3 for it's zero to sixty or 1/4 mile times. Still some people may buy it with the intention of towing, and I think that is when it could get a little hairy. The H3 is rated at 4,500 lb towing with the slushbox. I can't imagine this engine trying to haul 9,000 lbs up a hill.

So while the engine is fine, I would put that at the top of my list for future improvements which I am sure will be addressed in the next couple of model years.