I recall that you are a photographer.

Are you familiar or have you used a 3-Axis Gimbals for cameras?

I'm looking for a consumer grade gimbal for a smart phone to do photo
and video stabilization. Reviews are all over they place for the
consumer grade. The reviews make my head hurt :-) Problems with
calibration, etc., etc.

Professional products are cost prohibitive for my purposes. Any input
is appreciated.