I guess I'll jump on the band wagon...
This is my first TS-E lens, and it took a while to get used to it. While I still have some ways to go before nailing down the details, two things I found vital for this lens - LIVE VIEW and TRIPOD. Great lens, but not something you can use w/o prep time.
PS: By the way, these pictures were taken with APS-H body, so expect a wider view when you use it with FF bodies.
Pic 1 - Golden Gate Bridge in San Francisco, Pic 2 - Taipei 101, Pic 3 - View from Liberty State Park in NJ