I live in the Jacksonville area and this guy has been in business a while. He has recently expanded so I guess he is doing OK. I have seen his product and chatted with him at the local RV show a few years ago.
As a previous poster mentioned, Excel is now offering the Rhino roof as a factory option on their Winslow lline as an alterniative to the standard fiberglass roof on their higher end Limited. Excel is offering the product install at their factory for any rig.
Anyone with a qulaity built RV interested in keeping it for many years would probably find this roof worth the cost. After all, the roof is one of the weakest links on RVs. Just my 2 cents.
It would be nice to hear from anyone who has had this roof installed from the Green Cove Springs, FL, installer. Phillip