I've not had the opportunity to work on one of these..yet.. but I did visit their website to get some idea and some comparisons to other similarly sized/equipped Super C's. Very nice looking unit!
The first thing that stood out was their use of a 1-piece wrap around cap at the front and rear - excellent! These areas are notorious for becoming problematic leakers in any manufacturers C/Super C after some time that don't use the same 1 piece design. Kudos to them!
2nd, I notice they use no wood in the substrate framing, again, excellent!
3rd, this really seems low on power due to their choice of powerplants as they are using the MaxxForce-7 by International which is the same engine used in the Ford F250/350 Super Duty pickups in the model years 2008-2010. It's only rated at about 600lb ft of torque, which in my opinion, is a bit low for something of this size in a 19,500 GVWR chassis - especially if you're going to tow a vehicle or trailer at any time behind it.
4th, While they appear to provide a LOT more storage room than other comparable Class C's they also are using a lot of steel rather than aluminum - which is going to reduce your overall carrying capacity for the chassis itself.
Aside from fit & finish, decor and materials used inside (which only you can determine if it's right for you) I would suggest drilling them more about weights which are non-existent on their site other than the "class" of chassis they're building upon. Things that are important to you.. GCCC (gross carrying capacity weight), UVW (unloaded vehicle weight), GCWR (gross combination weight), and GVWR (gross vehicle weight)
A quick reference when you contact them...
GVWR = UVW + GCCC
UVW = GVWR – GCCC
GCCC = GVWR – UVW
94-Newmar Kountry Star 40-KSDP
Spartan/Cummins 8.3C-300HP/Allison 3060 WTEC-II/25yr RV Tech RVIA Certified/Onan-Cummins Certified