I did both rooms back in February. I did the JW one first and there was no one else that booked my time slot, so I had a TM do it with me, which was actually pretty fun. After, I asked if I could move up the time to do my BTTF one (I booked both way in advance) to one that was starting right then, and to my luck 2 other people just booked it as well and the 3 of us did it together (I would have been alone doing BTTF if they hadn't). My next trip is for HHN in Sept and I plan on doing this again with my friend, since he likes escape rooms and both IPs, but I'm not booking it in advance. I'll book it week of and get my UOAP discount. I had a good time doing it solo, and I'm sure I'll have a good time with my friend coming along, but after this 2nd time, I'm not sure when I would do it again.