I purchased a new Minnie Winnie 331K in 2013. I too thought that Winnebago was a better product, as this was my second RV. I had several issues with the front cap leaking during hard rains.
Two trips to my dealer were of no use. Calls to Winnebago were of no use either. I finally purchased RV-Plex sealant from Camping World and sealed ever seam on the entire coach, a real job but solved my problem.
I hate to gripe about companies, but Winnebago really disappointed me with this unit. I don't believe I will purchase another Winnebago product. Jayco seems to be a good company and I would think they are as good as Winnebago.