For any kind of pointing/aiming/selection task, the SC is hands down the best I've seen (arguably even more comfortable than mouse/kb for some things).
Where it fails in comparison to other controllers is button-feel, IMO. The shoulder buttons for example, compared to those on the DS4, feel very clicky/hollow (actually I think this is true of everything other than the face buttons) and can be distractingly loud. The DS4 buttons manage to feel soft/gentle while still being precise (and quiet).
My uses tend to be almost entirely centered around pointing/aiming, so I absolutely love the SC and use it heavily, but I'm really looking forward to a second revision.
Maybe I'd get used to it, but based on only a half-dozen hours or so, the "D-Pad" on it is possibly the worst directional input I've ever used, and the analog stick sticks out too far. The controller body is great, and everything else is fine, but directional inputs are probably the most important feature.