What do you think about Montana 5ver?

Having had the Mor Ryde IS on my 2006 3400 Montana and not on my 2013 3402 Big sky I can speak to the difference There is of course a difference, The Mor Ryde IS far superior to most if not all OEM non IS system systems. The suspension on this 2013 Big sky is NOT up to the IS standards but it is entirely adequate. The G614 tires are OEM on all the Big Sky Montana models. The Marathon tires on these heavier Montana's and other similar brands , IMO are not adequate for the heavy user. There are brands like Mobile suites where the IS system is a option. The MS is much heavier but if you can afford the upgrade and have the truck to pull the MS indeed purchase one. If you expect a flawless 5th wheel you will no doubt be disappointed no matter what the brand. The Montana is no better..no worse than any brand in the price range. We are not disappointed with this 2013 3402 Big Sky without out the IS although the IS would be a great upgrade and may be in the future.