Played #8 for a while a few days ago. Great fuzzy distortion that cleans up exceptionally well with the guitar volume. Can be noisy (hissy) with certain rigs. I love mine and it's not going anywhere.
I opened a thread recently after trying one, but got no comments. I guess it's too cheap Seriously, I loved it a lot. A very open, uncompressed drive, great for rhythm. Very transparent, good overall tone. Didn't miss a tone control at all, it was just spot on.
If you dug the Hyper Pak than be sure to check out the other mini Catalinbread pedals... These mini-C's leave me happier than Forrest Gump with a fresh Whitman's Sampler.
I started a thread a while back where I gushed over this pedal. https://www.thegearpage.net/board/index.php?threads/302226&highlight=hyper
The Hyper Pak is a killer little OD. But NOT small on the sound. Very nice clean up with the VOL knob as well!