I finally took the updated version of Indie Hardware stabilizer for a spin with GH1. I decided to make it as brutal as possible. I walked with my normal (brisk) pace holding the stabilizer with right hand not particularly trying to keep it steady - just making sure it pointed in the right direction, dodging other pedestrians, curbs, vendors etc. Wall street sidewalk is a heavily sloped in West-East and somewhat uneven in North-South direction which seems to have influenced the horizon line a bit. However, given the circumstances (and the price !) I think this stabilizer does the job.
Color grading (or lack of thereof - I'm lazy) with MB Looks.