Our block has some flat(ish) areas but other parts are very steep. Self propelled push mowers aren't strong enough to get through the bramble and brush and the only thing that can get through safely is a large brush cutter with a blade on it. Downside of the brush cutter is the effort to swing the equipment and it gets knotted up in the sense grass as well if you push into it too hard.
No more issues with that - the remote control mower powers through everything that I threw at it. Up and down slopes without issues at all. The few times it did get jammed up (old fencing wire left in long grass) the motor stalled. Because the tracks are powered independently I simply drove the mower to somewhere safe, untangled the wire and freed the blades and pushed the button to start again - started up without issues at all!
Where the grass got a bit to thick, all that needed to be done was backing it off a bit and the motor kicked back over again.
Only challenge I had was that after a few hours work, one of the tracks was dislodged and that was a bit of a challenge to get back on. A huge benefit of the electric tracks was that you could spin the tracks without having to start the blades and the machine could be left jacked up while refitting the treads and tensioning them.
Only suggestion which would help with people who just need the equipment for residential work is some more detailed instructions (i.e. how tight the tracks should be, if there are any specific jacking points that should be used, that there is a little valve on the fuel line that needs to be turned on to let fuel run to the engine etc.).
Ultimately though if you are happy to just try things out (within reason) I think that most people should be able to work their way though any problem with a bit of persistence.
100% recommend and definitely more comfortable walking around than being on a ride on on the steep slopes.