David makes a good point. I do not dislike M2. I think it's perfectly fine and, since it's readily accessible and does not require additional heat treatment, I think it makes for great stock to make a tough slicer. It's nothing I would seek out, but I would not hesitate to use the tar out it.
I wish some of the reviews did literal comparisons with other steels, per counts equal....... I don't have mangacut, but I could do other steels.
Once I cut many hundreds of cuts with magnacut maybe I'll change my mind?

I'd personally rate it higher than 52100, Abe-l, O1 for edge retention.

Idk about 3v?
My 3v knives are kinda thick, and not a good comparison. :/

M2, D2, M4, 3v, 26c3, and magnacut would be fun to see against cardboard

It's interesting to hear others views

I want to thank David again for making it for others experience.
Crag the Brewer Crag the Brewer I agree that deliberate side by side comparisons would be great, and I definitely wanted to do so. But between work, a toddler at home and the FYE season, my time was limited.

However, without a doubt I can say that my EDChef XL in 15N20 has superior edge retention. The EDChef is extremely thin behind the edge, with only a small bevel on the cutting edge. I use this knife every day, usually multiple times a day, to cut the same food stuffs (often thicker, tougher things like bones, butternut squash, etc.) and on the same cutting boards I used with the M2 mule.

The EDChef consistently cuts through tomatoes with one slice while only requiring a touch up once a week on my diamond hone and butcher's steel, with occasional passes on the steel 1-2 times per week. Whereas the M2 mule required touch ups on the diamond hone at least once per day between meals, and sometimes more than once.

I tend to rank my 52100, 15N20 and O1 knives in the same general caliber regarding edge retention. From my experience M2 is significantly lower on the totem pole than those three.

It is worth mentioning that these comparisons are based on the premise of how long the steel keeps its screaming sharp edge during normal use. In that case M2 loses rather quickly compared to the three steels above, but is able to hold its own with a decent working edge for a long time after losing its crispness. I don't hold the cardboard cutting tests too hard against any carbon steel since few of them really excel at it (if anything, the M2 might have an edge there since it can be kept thin without sacrificing too much toughness).
Yep, the first thing I did with mine was cut a bunch of cardboard, and the thinness and toothiness of the edge made a favorable impression. It was after using it as a shop knife and against cutting mats that my I saw edge retention was not great in those areas. But very tough indeed, to the point that a few passes on the fine diamond worksharp was all I needed to bring back the toothy edge in seconds, every time.

I want to say a big thank you to tinfoil hat timmy tinfoil hat timmy for the excellent cord wrapped handle, 000Robert 000Robert for all his time and effort sharpening and working with press and eyelets, oldmanwilly oldmanwilly for the gift of Monopoly money, Wild Willie Wild Willie for the very nice HDPE sheath and the twizzlers and woodysone woodysone for not swiping them from the package! I'm all seriousness thank you all for being a part of this, I had a lot of fun sharing my experience of M2 steel with you all and an extra big thanks to Crag the Brewer Crag the Brewer for offering me some to play with in the first place. I'll keep this knife and cherish it forever. The twizzlers, on the other hand... I don't think they'll survive the day.

I'm not sure very nice is how I'd describe that sheath... More like adequate. It's definitely a couple of steps above the hobo leather I use for machete sheaths though.

Edited to add: I am glad it survived for everyone that had it after me, I had a bear of a time with the waxed linen thread breaking while I tried to stitch it.
Give a commute everywhere cyclist a bag of candy while he's working and how long do you think it's gonna last haha
I have enough further experience with using these eyelets that I am pretty sure I have identified the cause of splitting. As I mentioned it is pretty rare that it happens to me. But it does once in a while. I would say that since this thread I have had a total of maybe half a dozen eyelets split out of hundreds that I have installed. And each time, I noticed (alas too late) that while I was holding the punch in place I had it ever so slightly on an angle, so that more force was applied to one side or another of the eyelet, rather than the entire eyelet receiving the force of my hammer uniformly.

So 000Robert 000Robert if your press gizmo was causing splits on every eyelet, then my suspicion is that it is or was ever so slightly out of optimal alignment. FWIW, GLHF!