Welcome! Ya, it's a nice variation of the number grid puzzles, with a nice combination of elimination, deduction and some luck. The walls toss it up and make it feel less repetitive than other games in the same genre.

It's got its own tricks, my time has gone down substantially since I started figuring them out

Nice! The first few can be tough. The puzzles also get harder throughout the week so if you start on Monday its much easier and then ramps up till Sunday!