Our 2005 Monaco Diplomat had the string type day and night shades. I guess we were lucky, we never broke a string in 7 years. I decided I wanted to add an MCD power shade to the windshield and replace all the other shades to modernize the coach. I did the work myself which saved us quite a bi of money. As "Fire Up" stated, the big issue is the size of your valance. If you have large valances, it's pretty easy to swap the shades out. It took me about 15 minutes per shade.
With all that said, if I were to do it again, I would go with Auto Motion. They're cheaper than MCD and are really the same product. After spending $3500.00 with MCD ($2400 for 12 window shades and $1100 for the windshield shade), they had an attitude when two of their shades they sent me had bad rollers. I wasn't impressed and won't do business with them again.
Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab