We have a 2011 Bighorn. Bought it brand new August of 2010. We looked at Montanas at that time and found more features in the Bighorn,better floor plan in the length we wanted, king bed, extra Fantastic fan, larger fridge and water heater. The biggest thing for us was the dealership. The Bighorn was at a local, well established place, while the Montana was at a big box dealership. Bighorns are rated for full time, not sure of Montanas. In the 4 years we've had our Bighorn, we've had no issues other than a cabinet that came off the hinge. Our style of camping is boondocking and we've been on many FS roads, carefully, and we're very pleased with the quality. I would say the Montana is a fine unit, so it boils down to floor plan and price which is also what did it for us.