We've had our Winnie since we bought it in late 2006, I still have it because it's been a great ride and very few issues. When we were shopping the dealer PDI guy that I got to know gave me some pointers when I was comparing the Damon Daybreak vs the Winnebago Sightseer. Happy he did and happy I went with Winnebago.
One of the great things I appreciate about the Winnebago of Class A motorhomes is the online resource they've maintained. You can download the wiring and plumbing diagrams, plus you can download a non-specific owners manual for the year and model.
Winnebago Owner ResourcesWhen the time comes to buy another I will take a long hard look at Winnebago they'd be my first choice going in to the selection process, but quality changes so I'd do my own research at the time. If I was buying a used one I'd spend the money to have a professional go through the RV inspection to make sure I'm not getting somebody elses problems.