Love our Lance 1685. Perfect for us. It is lower than the Nash or Artic Fox, but it's also light enough for us to tow cross country with a 6 cyl Toyota 4 Runner.
After 10,000 miles+ we've had a warranty covered slideout issue (rollers tear bottom slideout cover - easy fix at dealer or at home - or so we're told). We also replaced the hot water heater check valves with metal ones before the plastic ones from the factory cracked. As said above the Lance Owners Association is a wealth of information.
Ours is the 4 season (weathering several 24 degree nights in our 2 month spring trip west), and roomy enough for us to live for 2-3 months at a time.
Do your shopping, every trailer is a compromise, figure out what you need and have FUN!!!