I like Honda products, I own quite a few and I have both brands of mini tillers, the Honda and the Mantis.
IF you have stones, they get stuck in the Honda tines, not so with the Mantis, the Mantis has a little more power, and I don't have to change the oil in the Mantis's 2 stroke motor. I always have gas around for my chainsaws, I use the same gas in my Mantis... (NO E premium)
The Honda is quieter and I tried to like it more, but to be honest, if I had to choose only one, I'd choose the Mantis.
SR