RVwithTito is a very popular YouTube channel by Brian who covers how to do DIY projects and improvements to your RV. Last year he installed some SunPower flexible solar panels (2x110W) and followed that up with also adding a 170W panel. Brian spends a lot of the year boondocking in the dessert and this I would say has been a good test for the panels.
Brian has a neat way to install the flex panels to avoid putting any holes in the roof which he gives an update on, aswell as commenting on the SunPower panel performance and appearance after all that time. (spoiler alert for this one...the panels look brand new!)
Be sure to give the video a thumbs up and subscribe for alerts when Brian has a new video published. Also head to Brian's website for more top tips, advice and videos on DIY projects for your RV www.rvwithtito.com