We have had our 2800BH for several months now. I have few complaints.
The thing I wish Grand Design would do is put closeable louvres on the vents. The air system does not balance well, but works just fine. The worse is when the AC comes on while you are showering. It really pumps a lot of cold air into the bathroom.
The entertainment system would be the first thing I would replace. The Furrion is a lousy system and the TCL TV has little going for it other than it is big. Why Grand Design does not put in an HDMI Blu-Ray player is known only to the gods at Grand Design.
What the Imagine line has that makes it wonderful is the huge forward hold under the master bedroom. It is so tall you could easily keep your Honda 2000s in there upright. I have never seen a TT with a compartment that large. The 5ver utility pedestal is a nice touch, and it has 120VAC on the pedestal. That makes it very easy to charge your drill or run an air pump.
With the slideout in you have full access to galley and bathroom. Master bedroom is blocked, but the bunks are available.
You are going to need to add cushions to all the beds as the padding is quite thin.Clothes hanging space is pretty marginal but rather typical on trailers this size and configuration.
Now, GD has added a new trailer designated 2670RK (I think). It has dual slideouts at the rear of the trailer. Makes for a cavernous living area with popup TV and a kitchen island I believe. I think it has a bigger closet but the documentation is not clear. You cannot get to the galley with the slideout in, but the bathroom and bedroom is accessible. If you rarely travel with extra people it could be very nice.
Internal storage other than hanging space is not bad. Considering the bunk space and the foldup bunk you really can carry a good bit. The galley area can accept a rather large amount of cookware. The cupboards are rather large and pretty. You would still need to secure glassware or anything hard. Otherwise you might knock out the glass windows in the cupboards.
The sink is great but I wish it were steel and not plastic. The sink facet/wand combo makes it look luxurious, however, I wish I had a place for a water filter.
I wish they had put some plastic around the stove so that splatter will stay of the walls.
The problem with all these trailers are 12 volt outlets. There are none. I was going to string some in, but I realized just buying a portable 12 pack, would cost less than stringing 12 volts and lot more practical.
The bathroom is great. GD does not put in a toilet paper holder. They let you figure out where to put one. When running on shore power you can switch in gas and electric on the water tank and you never run out of hot water. Storage in the bathroom is exceptional, but the open cabinet by sink tends to let items bounce out and roll under the bathroom door. You have a porcelain toilet which is a great touch of elegance.
I have only recently decided I like the outside kitchen. In the past I regard these as a waste of space. But I started to realize I could put the larger pots and pans out there, plus all the soft drinks in the fridge. Since we keep the trailer at home, when the pardette goes to school she can grab a a coke or two right out of the fridge.
People who have added ladders will sometimes put their gas grill on the later and pipe it up to the outside kitchen.
The antenna is by Antennatek. It is a Winegard clone. I am sure it is cheaper, but I do not think its performance is less than the Winegard. When I replaced the AntennaTek with Winegard Rayzar, I discovered the antenna connection on AntennaTek was loose. I haven't check any of the other ones, but I expect they are likely loose as well. I would make sure they are all tight during inspection.
The TCL TV apparently lacks audio output. So besides the stinky Furrion entertainment system, the TV leaves a lot to be desired.
It is wired for a wireless backup cam. There are two versions: one is backup only; the other you can use while driving as well.
It really is a very nice trailer and you will not be disappointed.