I got mine (second hand) at the start of the year. I’ve been somewhat obsessed with “grids” and looping for a few years, and Monome + MLR was always the pinacle after working my way through numerous Launchpads, product managing Novation Circuit etc.
Since that time, I’ve also gone all in on building up the Norns DIY and finding a lot of joy in the exceptional scripts that the community has built.
Re:Mix, and Meadow Physics were my initial experiences to get going.
Using the Monome with VCV Rack is also a lot of great fun (Meadow Physics again). I don’t know if you’re coming from the Eurorack world or not.
To my mind the results far outweighed the learning curve. I think the whole craziness with MaxMSP as part of the learning process had blurred into the background for me. The documentation and this forum are incredibly rich with information and support.