As keven mentioned Toppers seems to stock fully loaded Roo's. I priced the wholesale rv places and even out in San Antonio for kicks. In the end the extra price I paid for wasn't that big a deal to me. If I were to have built out the Roo exactly as I purchased, then paid to have it delivered to me, it wasn't that large a difference. I also liked being able to take the Roo to Toppers for warranty work.
I have a small punch list going and will drop it off at some point to get the small items taken care of (back right burner doesn't light well, rear bed hits spare tire, and my external hot water access door hinge broke).
Yes, we can access the bathroom with the slide in, but I have found that we use the restroom facilities at the gas station. If I had little ones, that may be a different story. I have an 8 year old son, so our passageway is usually blocked by a bicycle!
There are only two outside storage access doors, but that hasn't slowed me down. I keep my black tank rhino stuff in a large plastic tub that I throw in the back of my truck. My city water hose, basic tools, electric supplies, levelers, chocks, etc all fit with plenty of room to spare in the storage compartments. I'm a newbie so perhaps I don't have everything, but I buy as I feel I need something.
The inside has plenty of storage. Matter of fact we are still figuring out where to put what!
I know the ikss model does not allow bathroom access with the slides in. As to your tub issue, that could be the deciding factor I suppose. Standing at 6'3" the shower is quite cozy
, but it works.