I bought a FR product because the CS was so good - as was evidenced it articles I read in TL magazine. That was indeed my experience so that part is not an issue. My Wildcat is still in perfect shape after 10 years of heavy use.
I have never owned a Jayco product but honestly, I was dismayed at what I saw at a local RV show. I mean, they couldn't even get the steps centered under the doors - they were off by 6+". There were plenty of other issues as well.
So there you go, both brands have their faithful followers so just get what you like.