Completed 70% on first attempt with 4x adults and 2x kids, then escaped in 45 mines on second attempt. Very well themed with many rooms. A mix of strait forward puzzles, and some that require a little thought/searching. Main challenge is that this is a huge set, so plenty to do, although each room is relatively small and more than 4 adults would be a squeeze, with not everyone having something to do at any one time. A nice mix of puzzle styles and the magic concept is well executed. Fantastic room that is worth travelling for.