Although neither were Rockwoods, we have had two of what are considered by most to be entry level trailers since 2007. We made 6 trips from the East coast to the mountain states and 6 trips to Florida putting over 49,000 miles on the first trailer. The only major repair was a wheel bearing that overheated and had to be replaced. Driving a travel trailer down the highway is like subjecting it to a moderate earth quake. Things are going to rattle loose. We traded that trailer in after six years and the cost of ownership (not including routine maintenance and tires) worked out to just about $2,000/year. We have put about 5,800 miles on the new trailer in its first year and have had no issues other than having to tighten up a few loose screws and trim pieces. My point in this is that cost of ownership and value for the $ are considerations in addition to initial cost.
As for Forest River and Rockwood products, Forest River commands 34% of the trailer market
and produces 3 of the top 4 selling brands of trailers. The Rockwood brand is number 4. As mentioned, there does not seem to be a trailer brand that is immune to problems/complaints so the complaints about Forest River and Rockwood may simply be a matter of higher volume produced/sold.
In my opinion, if buying from a dealer, the dealer makes all the difference. When we purchased our second trailer, the dealer assigned one technician to walk through the PDI with me, a second to address any issues we found, and a third to install the weight distribution/sway control hitch. The PDI took a little over 3 hours. Because they had a technician go through and prep the RV before the PDI we found only a couple of minor issues during the PDI.
Good Luck with your search for the right trailer for you!!!