My first Praetorium run was with 7 out of 8 people who hadn't done it before, and the other guy only got halfway through on his first run. We wiped several times and only did some ad-hoc research on 1 boss after wiping 3 times. In the end we actually finished the dungeon with about 2 minutes to spare. That was the most fun I've had in a dungeon so far

Also, reading up on fights and watching video's doesn't mean you'll actually 'know' the fights. You really need first hand experience, mainly because fights are often not like they are on the video's.