The cheap HF isn't very good. I have seen a few make it, just as many fail right out of the box. Angle grinders are a staple here, kind of like a circ saw to a framer and that's what brought the search on. They were being made in China anyway so we went looking and figured why pay more.
The main problem I had was overheating, usually in a hurry and on occasion simply burnt one up or the brushes wore before we caught it and even if we did it was repair and parts which don't hang out on every shelf.
I like the DeWalt 402 which was the old BD2750. It has a super "feel" and my preference is paddle but I got used to the slide.
I am on my second 7750 on the bench. The first one went years and finally gave up the switvch and for giggles my guy took it apart in about 10 mins had it back and it ran another couple yrs and it went south again. I was in a hurry and just replaced it, was really curious if the armature would fit the old ones?
I have a box of them, not really in a race to repair any since I finally found an easier cheaper solution and added only 1 to the box in nearly 10 yrs now.
They must have come up with better brush scheme while trying to cheapen them? We ran one 4x as long and the brushes are about half worn when the switch tanked.