No problems whatsoever to this point. And we have been in some good rain storms.
Keep some air moving through the camper at night (open roof vents some, use the bunk fans, etc) to avoid condensation. Our mattresses have gotten a bit wet on the bottom a couple of times.
Let me know if you have any other questions I can help you with!
2016 Ram 1500 5.7 Hemi
2019 Coleman Light LX 2405BH
2015 Chevy Traverse
2011 Chevy Traverse (traded 2018)
2014 Solaire 147X (traded 2019)