I bought one of these 25 years ago, for our large garden in the UK, for exactly the same reason as you describe. I persevered with it for 4 days and then took it back to the shop.
Conceptually there is nothing wrong with it, but in practice it was awkward to use and manoeuvre, terrifying on a bank or if you hit a hidden boulder the whole unit would vibrate and jump and if you clipped a small stone it would fly off like a bullet. I swapped it for a brush cutter mower. A powered, walk behind open fronted lawn mower with flail-like teeth, rather than blades. Brambles went in the front and wood chipping came out the back. 3 times the price of the unit you are looking at , but did a fabulous job.
I thought the same . But it’s not a good idea. I went for a cheap one , it blew up first run and I could not get a repair or replacement as the vendors guarantee was a sham. The machine has to be returned to Italy at my expense . I got it working after a fashion but never as intended. Get a top 4 stroke debrussier with a proper harness IMHO
We had that. We’re too old. Don’t have the strength any more.
I was just looking at mowers for slopes and came across this which looks as if it could be helpful for your garden slope…… About us – Grator Slope Mowers
I bought a 4 stroke strimmer and it simply wasn’t as good as any of the 2 stroke ones that I’ve owned in the past. I haven’t used it since getting a reasonably powerful electric one which is really good. And very quiet.