With four different modes of stabilization, you can get pretty much any type of imitation tracking, panning or dolly shot you want. Each mode essentially "locks off" one or two of the three axes of rotation. After playing around with it a bit, I found the options to be very robust.
On the handle, you have controls to help you zoom in and out, as well as a 4-direction controller that operates the rotation of the camera. The zoom in and out function only has one speed, so good luck if you want to get a steady zoom. But the rotation of the camera has a degree of sensitivity, so you can speed up or slow down your pan and tilt shot. I was also excited to see that the vertical and horizontal axes, while it can not do repeated 360 degree rotations, can do at least one full 360, which if you want some strange arty shots is a lot of fun to mess around with. There is also a trigger on the handle that when double-tapped will re-center the camera, and when held will keep the camera locked in a single direction for "sport shooting mode."
The camera app also has a lot of nifty features, including various shooting modes, including a trippy (if somewhat unnecessary) "strobe mode," but this is complemented with more useful shooting modes, like Slow-Motion, Time-Lapse, and standard record modes. The default seems to be set to still camera mode, which to a film-maker is a little baffling, but it only takes two swipes on your phone to get there so is not a deal-breaker.
Occasionally the gimbal will lose its way and get turned around a lot. More than once I found I needed to utilize the re-center feature to get back to center before all the axes got twisted up in the wrong direction/ Once my camera even started recording upside-down! While this was slightly disconcerting I would attribute it mostly to user error while getting to know the controls and understand the different stabilization modes.
All in all, this is a great little gimbal for an amazing prices. There are plenty of steadicam and gimbal options for iPhones on Amazon, but this one provides an iPhone film-maker with an incredible, solid option for getting beautiful shots in motion.