I've eyed that same Open Range before. They seem to make a REALLY nice trailer. The price is a bit higher but it looks like it's worth it.
I always think of the "big 3" manufacturers to be Keystone, Jayco and Forest River. Of those, I'd put Jayco at the top, Keystone next and then Forest River. That's just from what I've gathered reading around here over the years (totally unscientific study, I know). I actually own a Forest River product and it's not that it's a terrible unit or anything. Honestly, the 3 are pretty close and any is capable of being a lemon or not. There's really quite a big roll of the dice with buying an RV for sure.