I needed another zoom reflector, so I took a chance and bought this reflector over another Profoto Zoom Reflector 2.
It turns out this is almost an exact match to the real deal. The middle portion tapers ever so slightly differently, but the lengths are identical. Same goes for the 7.5" opening. The lip at the opening is also slightly thicker - but it was close enough that I was able to mount/remove Profoto's Barn Doors (part number 100671) without issue.
The dimpled interior on the original Profoto is more pronounced (esp. towards the tapered middle section), but overall it's pretty close.
From a quality of light perspective they also seem nearly identical. I used both on a Profoto B1 and the images at position 4 and position 8 looked remarkably similar.