I have a Stihl FS250 & used it say 10 days a year for the last 8 years. It’s 2 stroke, 40cc & I use it to clear weeds, sapplings, bushes etc with either cord or a metal 2 pronged cutting head.
I love it, it eats through most stuff. Bit noisy being 2 stroke but I wear ear defenders & mask. Have to be careful as it kicks up stones.
A c 1 acre plot takes me 1 day to get round, just switch the heads, fuel lasts 40 mins. Harness, gloves, face guard.
You can get cheaper ones, think mine was about 500 gbp when I bought it. Just needs a service every few years.