Probably the best overall locations I've ever been to. We did both rooms back to back, see other review for more details. Operation Gryaznayavoda came second. It flowed very well from the first room and the transition in between. The GM did a great job of staying in "character" in between as well. There were only 2 of us and the website said you needed 4. It was challenging for us to finish but we pulled it off. Some of these puzzles were so unique it was hard to describe to our family afterwards without them physically seeing with their own eyes and doing it. Very fun, very engaging!