They all have issues period. We all know that. Go to any brand forum, join up and read about the issues. Every brand has issues. Some more than others. For someone to trump up their trailer as the best there is, is rather ignorant. It's just a matter of time before someone with the same brand posts about theirs having issues. I do however believe that some are more prone to problems or are not built with the same quality as others in the same class.
FWIW I own a Northwood product. It's usually brought up as one of the better trailers for 4 seasons or heavy solid built construction. I've had a few issues with mine. So throw that theory of better built out the door.
Grand Design is the latest and greatest new better built RV maker to hit the market. Go to their forum site and you'll see that they're just like the rest. With the exception of better than normal customer service they have issues as well.
Point is just because a couple of people post about others having issues doesn't mean that all 'insert brand' trailers are bad. If that were the case then why buy any of them, as they are all bad.