I've seen people disregard them because they seem to be the low cost brand. I have a Goodman GMS8 in my home. It's a bit louder than many others, which may be of concern to some. I did have one problem soon after install...The fuse holder on the circuit board was loose. Took me about 1/2 hour to track that down. Tightened it and the thing's been fine for a year+ now.
My realtor recommended the guy that put it in. The guy had put in 12 furnaces for my realtor by that time. (Realtor owned quite a few rental properties.) None of them had any problem.
It seems to me that their low cost is worth it.