Just received and finished our first box, the Ireland box, today. The first puzzle was challenging and it did cause some overthinking while solving later puzzles. However, the whole experience was fun and took my mom and I about 1.5 hours to complete. The process is slightly intimidating at first as this was our first box and the lack of specific instructions is a little scary at first. It seemed so open ended, but once we got the first clue you understand the process and it flows really well. Loved that not everything was just on paper, there was the coaster and the backpack as well. Overall so fun and look forward to next months box!