I owned a 2006 H3 for 7 years. It was a great platform and capable rig in stock form, however it did lack a lot in the power department with the I5 engine... It was nice that you could put 35x12.5 tires on with no lift or cutting required! It was terrific offroad! Here are a few pics of the setup I had.
It's final form before I sold it.
One of the big cons now for the H3 is that it was discontinued, so aftermarket parts can be difficult to find (if looking for something specific) and they are a little more expensive. Another con was the usable storage space inside because the back seats don't fold flat and the trunk space is narrow and short.