As of this morning I've completed my 14-day OneBlade-exclusive stint. It's been instructive in several ways, one of which is that toward the end I was both getting great, comfortable shaves, and also restless to try another razor (which tells me there's still value in variety for me).
If the OneBlade were my only razor, I'd be doing very well. I'd miss the variety, so the hobby aspect of shaving would suffer, but as far as actually just getting the job done, the OneBlade is as good as anything I've used, and easier than all the rest. I can certainly get close, comfortable shaves with other razors, but I haven't seen them work as consistently in my troublesome areas (mostly corners of my neck, or jawline). Granted, even the OneBlade can cause trouble in these areas if I'm particularly careless with it, but it didn't take long to see what I was doing wrong and now all is going very well.
In the last few shaves, I tried the technique
SharpSpine described elsewhere, which is to let the skin be a bit more slack (no stretching, particularly on the neck) and add a bit more pressure with the razor than you would with other safety razors. Ta-dah! On WTG passes, this handled my neck best of any approach, and made the first pass with the OneBlade closer all over, without irritation. The added pressure did become a little problematic going ATG on the neck, so I back off there. Still, it's a great, counter-intuitive tip.
After 14 days, my skin is looking great. Redness I used to always have on my lower neck is almost all gone. I did have a few pimples show up a week ago, but I'm almost certain these were from a new after shave balm; they've since disappeared.
I now feel as if I know the OneBlade well. It's a reliable, impressive tool in my roster, and I'm very glad to have it. Next up will be some time getting to know my new Feather AS-D2. As I've said before, I think these mild (skin-friendly) razors pared with sharp blades are the right combo for me.
(And yep, I still haven't tried a de-spined GEM in the OneBlade! Soon enough.)