They were helpful; but the puzzles didn't have any guided hints attached to them. So you basically just try solving it based on the result notification without any lead. And in a level where there are 7 choices and 4 answers, there are 840 different inputs we can take. I don't expect anyone to solve the first level without getting a bit frustrated.
My recommendation would be to change the order of the levels so the difficulty slowly ramps up or have some kind of hinting.