Finally nailed the tilt-shift lens to my expectations (approximate set-up time of 7-8 minutes). Best shot ever taken with the TS-E 17mm. With a shot like this I finally can see the value. I took an identical shot with the Samyang 14mm and finally in my opinion, matches it. However sadly, it only took me 2 minutes to set-up the shot with the Samyang vs the TS-E and also the extra 3 mm on the Samyang gives a totally different feel the final image.
This image combines both shifting and tilting. Approximately 3 degrees of shift and 1 degree of tilt.