We like our Brookstone. Not a lot of people on line with them. That could be good, as most people get online to complain about their rigs.
Based on what I saw during a visit to the manufacturer, what I have read online, and my own experience, I would say the quality is about the same as those in the same price range. Some are perfect, others total lemons, and most fall within the middle somewhere. Ours fell within the middle.
Being close to the manufacturer made it easier to take it to them to fix issues under warranty. Treat them nice and they will treat you well. I think way too many people go in angry. Don't get angry until they won't fix a problem. We never had to get angry.
They have changed a bit since ours was made. No rear cap I see. We purchased because the layout was good for us (with a cat), the engineering was better than many units (good use of space), and the look was what my wife wanted.
Looked at a new Brookstone at the Coachmen annual rally. The storage basement was huge! I mean, you would have to crawl in and get stuff out huge. That's too big. Too unwielding to use. Ours was about the biggest at the time of purchase, and was well designed (no pipes waiting to be damaged).
I would not buy a trailer in this price range (any manufacturer) that was not on the lot. I would want a LOT of time to go through any of them and test them to ensure there are no issues, or they are fixed before buying.
Note, mine came with junk tires. Heavy trailers. Nose heavy trailers. My loaded pin weight is around 3340 lbs. Try to get a free upgrade in the deal.
2013 F350 6.7 DRW SC Lariat
2011 Brookstone 354TS
Swivelwheel 58DW
1993 GL1500SE
Yamaha 3000ISEB