I don't know what you are running for a tiller, but on this site, people think a tiller is a tiller is a tiller! THAT just isn't true, and folks here buy on price.
The cheapo tillers are just that, and they do NOT till as well as the better tillers, they are NOT as strongly built and won't last nearly as long as a better built tiller, but the cheapoes will run on less HP, and that's why you keep seeing folks here recommend too wide of tillers for these low hp tractors...
IF, you want something that will get the job done faster and last longer, you need to look at a better tiller... Also, better tillers have adjustments that allow you options on how you want the soil tilled that aren't available on cheapo tillers...
This Howard HA, has very close to 2,000 acres under it's belt!
It's never had a bearing, chain or sprocket replaced in it, and it's still field ready right now...
SR