I had one, it was fine till I used the wrong oil/petrol mix. My bad.
I am not a professional so don’t need an all day machine. I cut about 12 to 15 cubic meters a year as all my heating and hot water is done with the woodburner. Currently using a draper chain saw. I got a good deal.
The cheap ones should last you 4 or 5 years, subject to correct mix, cough, even longer if you look after them. Then when they break, buy another one. Cost more to get it serviced.
Of course if you need it for professional reasons, then, ask someone else. But for my use, yeah, it was fine.