About a year ago, I posted a review of these shoes.  High-level, my impressions were good; however, I found that, at least for my feet as they were at the time, these shoes did not work for me, primarily in the toebox area, which I found a little too shallow/narrow relative to this area in the other minimalist shoes I'd been kicking around in.Well, fast-forward to recently.  I have made significant progress in strengthening my feet and getting my toes/body better aligned, particularly in improving the mobility of my big toes and gradually getting my feet to point straight ahead instead of curving inwards (which had been causing my outer toes to roll outwards).  Whereas before, my curved feet were causing my big toes and the outer edges of my feet to struggle with these shoes in the midfoot/toebox areas, my feet are now much straighter and go right down the center of the shoes.Given that I'm starting to find "traditional" running shoes pretty cumbersome and restrictive - even lower-stack (20 - 24mm) zero-drop ones from some of the top brands - I decided on a whim to give these shoes another shot.Boy, am I glad I did.What a joy these shoes are to wear.  I can't exactly put my finger on where the difference in fit comes from vs. the last time I'd tried out a pair of these shoes, since I'm pretty sure nothing has changed in how these shoes are made, but it's pretty drastic.Speaking to specific areas of the shoes that I dig the most (in no particular order),• Outsole - Super grippy; zero concerns about traction on any of my usual running surfaces, in dry or wet, including asphalt/concrete and small gravel (though the tread is thick enough that I could see being able to take these shoes on light trails with no worries)• Fit/Lockdown - Hands-down the most dialed-in, confidence-inspiring shoe I've worn to date; my feet stay perfectly centered in these shoes regardless of the level of turning/side-to-side movement, with no slop whatsoever• Flatness - Just like standing barefoot on a flat surface; a huge plus since my left foot is slightly narrower than my right foot (work in progress), which causes a noticeable difference in fit with shoes that are U-shaped inside• Comfort - Literally one of the most comfortable, "barely there"-level shoes I've ever worn, with just the right balance of padding to keep inside surfaces from rubbing my feet the wrong way while staying light and low-profile• Flexibility - The most flexible, accommodating shoe I own; factoring in the thin, protective layer that these shoes provide between my feet and the ground, I'm happy to report that my feet otherwise function 100% like they were barefoot in these shoes, which is something I've been unable to say about any other shoes I've worn to this point. These shoes also eschew a pesky "toe spring" (artificially curving up the front edge of a shoe), instead being flexible enough in the forefoot area to allow the big toes to function naturally.• Build quality - Top-notch materials and overall build quality; love the reflective bits for added safety in lower-light situationsSo, to those who read my previous review, please take it with a grain of salt.  Our bodies are always in flux, and after the ongoing improvements made with mine over the last year, I'll just say mine was much more ready for these shoes this time around than it was the last time I tried out a pair.  Long story short, if ground feel and overall foot strength/mobility are your main focus, and you plan on doing more than just walking/standing, e.g. running/HIIT, look no further than the HFS.  It's a winner.