Thanks everyone. I know there are many happy Jayco owners, perhaps thousands. I hear they offer great warranty service. I'm not trying to say Forest River or Keystone are any better. I don't want to get into a brand war here. In my opinion I think they all have quality control issues. If I'm going to spend a large amount of money on an RV I want to be sure about the decision.
I agree with imjustdave: "Honestly I'm not sold on it". The idea of pushing or pulling a large heavy slide with two small synced DC motors on an aluminum track doesn't appeal to me. Having to make sure you're level, have a fully charged battery and make sure you don't stop part way concerns me also. I do however like the simplicity and serviceability of the design. If the model we're looking at had a smaller, lighter slide I wouldn't hesitate.
Just not convinced it's something I want to take a chance on.
Thanks again for your feedback.