My 2-cents
Hi Fassel,
Personally I like them. We camp every weekend during the spring,summer and fall, so we pack up and unpack the camper alot. I can't imagine having to get up on top of the camper to brush off any debris that might have gotten on top of the slides, let alone the water that would inevitably get in if we were to pack-up during the rain. The only down side to them from my experience is the cleaning. Awnings are bad anyway, now I have to clean (3) slide toppers also.
By the way, welcome to the Heartland Forum. I'm sure you will get alot of very useful information from many knowledgable people here. You will also get responses from the Factory if you so chose.
Good luck,
Mark