In my opinion, I couldn't have made a better choice for my first whitewater boat. I have gained confidence because of it's stability. The boat was also the boat I learned to roll with. It's been on II+ and have actually paddled on flatwater for a good distance. (10 miles). While this boat doesn't track well in flat water, it's still my go to boat no matter what I'm facing. If it's flatwater I just know I'm going to be paddling a lot to keep it going straight.. which is what to expect from whitewater boats. But this one tracks a lot better than most other whitewater boats I have tried.
The h3 to me seems bomb proof. I know this is an older boat no longer being manufactured. But if u can pick up a used one I would go for it. I am very happy with mine.
Like I stated above, this boat has given me enough confidence to hang out in 2+ rapids. It should be said that I do have another whitewater boat at this time to compare to: a Dagger Agent. The H3 is much more forgiving and more stable. Things I don't feel comfortable doing with the Dagger I will plow right through with my good 'ole h3.