I received it Friday, installed and tested it today - my overall impression is that it's well worth the $23 (plus riser). Although this isn't my final configuration - it's pretty OK for being too high (wrong riser height - anyone need a 13 slot x 3/4" riser?)
Things I didn't say in the video is that there is a tiny light visible from the objective lens of the red dot. Lower intensity settings mean less light is visible. The lens covers are transparent, so the red dot can be used with covers in place - although they're tinted slightly.