Ive been playing this game for a long time now, and have yet to get tired of it. IMHO, it is the best Mahjong ap out there, and I play it daily, and have tried almost all of them. I love the tilebot, the variety of layouts, and the scoring system. The only suggestions I would make are: leave the name of the layout up through the entire play; and add an easier version to the challenge mode as follows. When a layout is lost, only lose two levels, not three. Thank you so very much for this amazing game!!!
Update: since the recent update, the game has definitely changed. Not sure yet how to rate it. My levels and score have dropped, and it is much harder to complete the layouts because of the increased speed of Tilebot. Ive gone from averaging levels in the 80s and 90s back to the low 70s. I do like a good challenge, so will keep playing to see how it works out.
Lorinn about Moonlight Mahjong, v3.2.2