I am sure you will get a lot of different opinions on the subject of third party warranties based on individual experiences.  We bought a 2007 Fleetwood Excursion from Camping World a couple of years ago and purchased a Good Sam warranty because I had no information on the maintenance history of the coach.  The warranty was expensive on the older coach but in two years, I have almost recovered the cost and I still have three years left on the contract.  The Good Sam people have been very easy to work with to process claims.  They have rules you have to follow to the letter to submit a claim, but when you do follow the rules, they will cover the repair if it is a covered part,  I have had no issues with getting a repair covered and am glad I purchased the warranty.. 

We've had Good Sam coverage on our coaches. While they have been good about claims as previously mentioned, you need to be serious about keeping records on all the oil changes, and required maintenance items or you risk being denied. The only other minor aggravation we experienced is there are items like shop supplies they don't cover and my 500 deductible always ends up being several hundred more when I go to pay the bill. 

Has any one had any experience with Star RV warranty?