I am not a fan of all the fine print found in extended warranty contracts, and I'd strongly recommend that you read the contracts of any company you're considering, before you sign anything. Some are cleverly worded to enable companies to avoid having to pay.
It's just my personal opinion, but I would not buy an extended warranty for a towable or camper. Repairs to things that might break, and which are covered, aren't usually very expensive. It's been my experience that it's often more trouble to take the RV in to get a covered item repaired, than to just fix it yourself.
If the factory warranty has expired, the drive trains of Class A, B and Cs can be very expensive to repair if there's a catastrophic failure. (Very unlikely I admit, but it happens.) Because of the potential for a very expensive drive train repair, we just purchased another extended warranty from Easy Care. We already had coverage from them, but it was about to expire.
We've never filed any claims with Easy Care, so I can't attest to their willingness to pay on a claim, but they get pretty good reviews overall. What I liked about them, is that they required our motorhome to be inspected at one of their authorized centers before they'd cover it. The inspection took half a day and was very thorough. I had looked at several other companies, but none required a pre-inspection. I was concerned that any company that would offer coverage, without knowing the condition of the RV, might be more likely to try and avoid paying a claim, especially a big one.
It cost us $4800.00 for four years of total RV coverage, with a $500.00 deductible. I really only wanted drive train coverage, but they didn't offer that. Good luck with your decision.
Kev