It's hard to judge trick taking games unless they've done something completely original, which is hard to do in this very limited genre. 5211 manages to find itself in at least the upper half of trick taking games. Wasn't a hit in my group, but I enjoyed it.
I greatly enjoyed the first trilogy in the 50 clues series, but this trilogy just didn't have the same emotional impact as the first. Also, the puzzles were a little more obtuse, and overall the feel was a little less refined. Worth playing, but I didn't enjoy this trilogy as much as the first.
Unique and interesting is what I'd call this series of escape room games. I would be leery of introducing these to young children, as the themes are rather mature. Straightforward game though.
My wife and I really enjoyed the real time aspect of 5-minute marvel. The art is excellent, and the overall quality is very well done. Definitely recommended.
I've played this with all sorts of groups, and it's always well enjoyed. When my children were just starting to learn math, it was an excellent and fun way to practice. The main game is basic plus and minus math, but there are tough decisions to make to maximize your chances of reaching the top first. There is also a multiplication/division variant.
As an educator, I keep my copy at school now to pull out when needed to kill some time or have a break from the more serious lessons.