Here are my thoughts,
Knife arrived with a great edge, wasn't heavily polished and had a good amount of bite. I noticed a bit of degradation on the edge after making a big batch of pasta sauce, but a quick touch up on a 5k had the edge right back.
I think i was expecting a little more than the knife delivered, predominantly because of the profile, it wasn't quite long enough and the upswept tip foreshortened it. This is just personal opinion mixed with expectations though, and my expectations were high, perhaps unrealistic.
Compared to my Shigeharu KU nakiri i felt the Shigeharu was slightly in front on cutting ease, though this may have been because i have spent a while refining the edge of the Shigeharu to how i want it, this being a passaround knife i resisted the urge to start playing with the bevels. Tweaking a knife to how i use it usually gets a bit more out of it, and i felt that the passaround nakiri still had some more to give.
Wondering if it was partly familiarity with my own knife, and a lack of board time with the Passaround as well.
The hollows on the blade face reduced the weight noticably and the knife felt nimble in use. Stiction wasn't an issue and no real issue with wedging, only noticed an inkling splitting some larger than normal carrots.
Handled everything i threw at it, but i think i'm just to used to 240 and 270 gyutos as i felt like i was missing some length, a pointy corner at the tip would have been nicer too for tip work, as i felt i didn't ever touch the existing tip to the board due to the curve.
Steel sharpened up really easily. a few swipes on a 1k drew a fine burr that vanished on the 5k. feedback was nice, but i've only experienced a few knives that felt weird on the stones -either super soft stainless or weird powder steels. Was also decently stainless, resisted the urge to wipe it straight away and left it to see what would happen and no signs of any corrosion, makes a change from the carbon i've been using recently that would have gone all kinds of orange with similar treatment.
Retention is better on the PM steels than on the passaround but the ease of sharpening meant it is simple to refresh the edge, i had the feeling that i could have kept the edge going with just a loaded strop, but wanted to see what it was like on the stones, and Rosco asked for a fresh edge.
Handle was comfortable, balanced the blade nicely and the tapered front section (something i don't have on other knives) fitted my hand well. slight ridge between the parts, but very very slight and probably a product of the climate.
@RDM the edge was treetopping when it left me and i included a bit of leather and 1-3 micron honing compound when i posted it out to Rosco
Cheers,
Tom