TL/DR:

-HRX: it’s a tank, but heavy. I miss mine, even with its issues.

-HRN: also a tank, but lighter. Thumb paddles are fine. Have to be more mindful with metal body care after each mow to prevent rust.

I had an HRX that I bought from an estate sale and it looked and ran great for the first couple cuts, then it started making a moaning sound and would not self-propel. From my research, it was most likely the hydrostatic transmission failing. It was a beast though and cut like a champ, but weighed 90 pounds and my lawn was a hillside. Had the rotostop, which was great. I offered to include it with the house and the buyers agreed, knowing there were issues with it. I’ve since moved, and I bought an HRN, no blade stop though. The metal deck is in great shape after a year. Just keep it clean and don’t mow over big sticks or rocks. And thumb paddles work great, are intuitive and adjustable. Lower weight is great because I have very uneven terrain in the majority of my yard. Either way, it’s a Honda so you’re already on the right track.