I just went through it and thought it was a true pain for such little iMG, compared to Le Miz and Winter Walk.
The timers for the tall and also vanishing platforms seemed a bit short so I found myself redoing jumps over and over. Le Miz takes me about 90 seconds to finish, its fun - hard at first but then it gets easier and easier.
Winter Walk is just some creative jumps and you get a nice payoff.
Summers Day drove me crazy. It looks awesome (I love how it looks), TS folks....but really not nearly as fun to play as the others for me.
To me it needs only about a second and a half more on the vanishing platforms/tall ones, and about 1k more iMG and it would be a lot more fun/worthwhile to do.
Maybe there IS more iMG there than one big iMG quoin, but I've done this a few times now and it seems thats it for the 'goodies'. Winter Walk is pretty generous and so is Le Miz when you compare them.
I know things get fine-tuned all the time, maybe some time can be spent on this a little? I know there is always a long list of broken things or adjustments, so it might be a while before this gets looked at.
Thanks to any TS devs that take the time to read over this, I know you guys are always busy...it shows by how smooth Ur is most (99%) of the time.