This is my first neck warmer (aside from what's built in on a balaclava), so I don't have a lot to compare to.
However, I've been satisfied with it, and use it all the time lately in the winter on both rides and jogs.
The material is pretty thin, but it seems to do a good job of keeping my neck (and face) warm. Also, it's not a tapered hourglass piece of fabric, like it kind of looks like in a picture, but just a straight rectangular item when you put it out flat. It's got a bit of a stretch to it, so it goes easily over your head, and fits around your neck ok. I can use it several times before it begins to stink, probably due to the merino wool content.
If it's really cold, I can pull it up so it covers my ears and nose and mouth, or keep my nose out if I want. It will fit that way under a cycling cap with ear "flaps" so your ears keep warm.
I should have bought this a long time ago.
