I have, and I have already reached Rank 100.
Right now I'm trying to fill all the Berries and Training to the Max.
Maybe trying to get to 999G after I have finished that.
Other than that, I do not know what I'll do with the game.
The rate on how fast I get diamonds is still very slow and I do not feel it is worth it to try and collect all Decorations and Friends to the max with this pace. I might want to complete the Dex and collect all achievements, but other than that I do not see a reason to keep playing.