Is the 24mm TSE ll tricky to focus?

I do not own it nor have I used it.. but if I had to guess, if used correctly, I'm sure its a spectacular lens...

I have used 4x5 film cameras before in the past.. if you understand tilts/shifts/swings and how they effect the focus in your image, I'm sure you will have no problems... These features are immensely helpful tools in architecture photos.

I'm sure if you read up, and practice with the lens...you'll probably love it.

Godd luck!