I suggest researching the slide recall issue further. Did it apply to your year/model? If so, has the necessary work been performed? If not, contact Winnebago. I don't think recalls age out. If you purchased it from the original owner, they may be able to provide the necessary info. However, I don't see your's on this list:
ITASCA SUNCRUISER RECALLS - Auto Recalls for Consumers
Here's another recall list that shows three recalls, none slide-related:
Here's a link to one discussion of the 2014 Suncruiser 35P's slides, I'm sure there are more:
That aside, with three slides, one of which is full length, you will be exposed to a higher degree of slide problems than MH's with fewer and/or shorter slides.
You should check out the Ford Motorhome Chassis Forum on Winnieowners' sister site, IRV2.com for info on your chassis:
Keep in mind, even if you find, say 10 postings with a particular issue, that's 10 out of all that were sold. For the most part, owners don't post when they don't have a problem.
Most of the other systems, water pumps, refrigerators, air conditioners, etc. are used in many different makes and models of RVs, so you're best served by searching on those specific makes and model numbers.
Most of the issues you will encounter will be the result of lack of owner maintenance such as sealing roof vents, etc. One thing you should research carefully is proper sealing of the roof edges. Improperly sealed edges can lead to catastrophic wind damage. Here's a link to an informative video on the subject: