I solved the puzzle, and that was all it was: one puzzle. It was fun and just hard enough to keep me engaged, but I play a lot of these logic puzzles. I wish there had been more puzzles. The only way to "lock" an answer in is to fix it to the house, instead of, say, fixing the fish to the Englishman or the beer to the American. This makes it difficult to keep track of things.
Also, the UI is a bit weird to work with. Instead of the solutions being stuck on the page for you to continue consulting while looking at the puzzle, you have to "pull" another page down that just feels a bit odd.
Overall, it's a pretty fun, if very short, puzzle. I definitely recommend playing other logic/Einstein puzzles if you enjoyed this one. I'll give it 4 stars, regardless of whatever issues I had, to support the devs because I had fun.