This thing is great. I’m a transportation skater (ie, prefer wheels over walking) and big believer in the saying ‘the only good ____, is the one you happen to have with you’, and the tiny/light Penny is the mostly likely set of wheels I’ll have with me. Pushes nearly as well as other top mounts, and is surprisingly decent at pumping too.
The 22” length is just right for quick/easy horizontal carry in the small of my back, either resting on backpack straps, or under the lid of my messenger bag. Nose and tail ride just behind my elbows so no need turn sideways in crowds or through doorways, and fits in a airline carry-on.
Lack of griptape is a huge benefit as it won’t abrade my bags or clothing while carried, and the Blackout treatment is much appreciated for the stealth (as an old skater that looks out of place carrying boards around).
Two suggestions for improvement: looks like there’s decent room to add some wheelbase and deck surface area (width) while still keeping within the overall 22x6 dimension.