A neighbor on the adjacent corner has a deere. I used his a couple of times doing his yard when he was off. I removed that one from the list early on. Went with the RSD60. I run it wide open.
Cut is great, most sensitive sticks out there. The RSD60 has a great seat, widest tires to keep from cutting up your sod. Love the engine guard on the RSD, strong enough to run wide open backwards into something and not worry about the heads being slammed.
Either should do just fine. I learned that jumping, removing and replacing the battery in a Deere is a pain, so is the oil change. But then, so it is on the RSD unless you change out the drain plug with a 3/8" barbed connector they both are a pain.
Good luck with your choice.
Max