My 2003 8HP Honda was so good I traded it for an 8HP Yamaha in 4 months. Let's see:
Leaky Gearcase from the getgo. Charging system was a joke. It WAS quiet (Except for the following complaint), assuming you could get it started when you wanted it. And the best part of all was on the tiller handle, there was a plastic piece that you turned to adjust throttle tension, not only did this not seem to adjust anything, but it would RATTLE like crazy. I finally duct taped it (At least the duct tape was the same colour as the motor). SG (Where I bought it) had told me that Honda's suggestion to the rattle was to squirt grease under the collar, so when the handle was up, grease would rattle down the handle. And let's not forget the dinky little tilt pin thing that held it up, I broke a few of those at 40 dollars a crack! Maybe I had a lemon, maybe it was as bad one, but when I was finally done with it, let's just say it didnt' hit the back of my truck niceley.
However, I should, in Honda's defence, point out that I had an early 90's Honda 10HP kicker (don't know the exact year, it was a square silver one before they went to the round cowling), and other then it being worn out and dunked a few hundred times, ran fine. Was not a high thrust per say, but would start and run reliably.
I do think the Yam's high thrust setup was better with less cavitation.