We had a Forest River pop-up for 5 years and never had a single issue with it. About a year ago we decided we wanted something bigger and went with a Forest River Wildwood 28DBUD. Managed to do 30 nights of camping in 2015 over 6 trips and a few thousand miles of towing. So, one year into it, here are my thoughts so far.
Hits: Love the trailer and the floor plan, it really fits us perfectly. The quality, fit and finish of the cabinets, countertops, doors, windows, etc. is excellent. We have had zero issues with any of the systems like heat, a/c, fridge, slide out, water heater, converter, cooktop and microwave. The wiring (both 12V and 120V) seems to be very neatly bundled and secured. Looks better actually than what the electricians who wired my house did! So far it is holding up very well in all areas, ie. despite all the use it got last summer, there are no areas showing signs of wear or things falling apart/wearing out, etc. With proper care and maintenance, I feel confident that this will continue to be true for many years to come.
Misses: Although the unit was delivered to us spotlessly clean in all accessible areas, once you start digging around in areas that require removing screws to open a panel (like under the fridge where the water pump is located, the furnace compartment, and around the water heater) I found tons of sawdust and construction debris they never bothered clean up. On the first trip we encountered a few minor plumbing leaks due to fittings at the faucets and sink drains that were never properly tightened at the factory. Luckily these were easily fixed by tightening the fittings by hand and they have given us no issues since.
Bottom line: Despite a few little complaints, we love it overall and would buy it again in a heartbeat. I feel that it is excellent value for the money and am confident that with proper care, it will last for many many years.