Renn Disc wheel 575 Clincher gear reviews

I bought this disc after trying the wheelbuilder covers.The covers really helped with my time but didn't seem to ever fit right even though I paid extra to have them "Custom-cut" for my wheelset. The Renn disc has no issues. It rides great and has made a big improvement in my times especially on flat courses. The wheel look great on my bike and makes it look new again.My wife uses a ZIPP disc. It is impossible for me to offer a head to head comparison, but at 3x the cost of the RENN I don't think she has much, if any, more of an advantage. I regret buying the covers but if your budget is that tight they may be worth the investment. In my case, the covers are simply taking up space and collecting dust.