We bought our Landmark at RVs of Sacramento. The sales manager, Ralph, was easy to work with.
Watch out for irritating upsales while signing paperwork, including high-priced extended warranty, clear-coating, and tire gimmicks.
Mixed feelings on service after the sale. Some warranty items were never resolved after 4 months. The ones that were resolved took several months if they had to go through Heartland. (Service manager's contact at HL had left the company several months previously, but service manager never pursued unanswered HL emails...) Adjustments that did not require HL approval were handled quickly and well.