Hi paramooner. We bought our Cruiser 30SKP from Lazyacres 2 years ago. They are a great bunch of people to deal with, and go the extra mile to make sure you are happy with your purchase. We have had several warranty issues that have all been dealt with, albeit, slowly.
I can't comment on the Rushmore but we are extremely pleased with our Cruiser. In addition to many other features, we chose the 30SKP based on the amount of counter space in the kitchen.
In the past 2 years we have traveled to the Gaspe peninsula and last summer did a circle tour of Lake Superior. We experienced no mechanical problems whatsoever.
Good luck with your decision, I'm sure you will find that Crossroads products live up to their reputation.