So what's friving this decision? I know you are having space issues with the no-slide unit you have now and have seen your posts considering every possible camper from Pop-up, to Fifth Wheel, to Class C.
I like big campers. I watched the Youtube video. The following is my opinion so take it for no more than what it is worth. What I like may not be what you like.
I cannot wrap my head around the value of a 1/2 bath in a weekend trip camper. Takes up / adds too much space vs. the benefit.
The slide in the bedroom is nice but they typically give you no more room on the side of the bed, some extra room to change at the foot of the bed. Nice but not a big deal one way or the other.
I would love to have the huge bathroom with stand-up shower that this has.
There are plenty of bunk house campers less the half bath that carry all the same basic amenities this does that are another 3' - 4' shorter. Mainly depends on how much room you have where you camp. Good luck.