We have one. Purchased used in January 2021. Previous owner acquired in March 2020. If you look at the Bundutec insta it is the one that went on the older F250. Larger water tank, standard windows, 3000 watt inverter from factory, air conditioner. Propane hot water heater, furnace and stove. Electric fridge. Pretty much most of the standard features.
Pros - modern appearance with lite grey walls and caron fiber look cabinet doors. Functional layout for small camper. N/S bed with side storage. Cassette toilet. Full interior shower but with half walls, makes it feel larger. Fits within the bed of truck and is narrower at 7 feet wide. Ample interior storage for two of us.
Mods - Added Renogy combo DC to DC charger and MPPT charge controller. It had a 180 Watt Zamp solar panel and I added two Renogy 175 watt flexible panels for total of 530 watts. Added 206 amp hour SOK lithium battery. In order to make it fit I had to extend the step/storage box on the front wall about three inches.
Cons - it is ultimately a standard RV truck camper, made to traditional RV specs.
We like it and the only reason I would get rid of it is if we wanted to have something more 4-season. As you probably know, to go from any of the production campers to a full blown custom overland habitat the price goes up considerably. Then you get truck creep due to increased habitat weight and the snowball just keeps rolling.
Happy to discuss offline as well.