We were at the Tampa RV show in January and compared the two. Although the 4001LK looks fine, I think the best kitchen is the new 4120GK if you've got a truck to pull it and the space to park it. It's a large kitchen, most counter space, more cabinets, super nice bathroom setup and more clothes storage. Think they borrowed the idea from LUXE, as they had one similar. Hitch weight is similar to the 4001, but overall 2 ft longer and about 200# more overall weight. I'd definitely get the MorRyde IS if you're traveling, but many at our RV resort in SW FL are just having them delivered and using it as a secondary residence.
2017 F-350 SRW 4x4 CrewCab
2017 Redwood 36RL with Goodyear 17.5 G114 and MorRyde IS, Disc Brakes
TireMinder TPMS monitor/Slide covers
Fusion backup monitor
PullRite Superglide 2900 Hitch