I am a huge fan of wool clothing. I love Merino baselayers and I have a quite a selection of wool socks. For last few years the only socks I have worn are those made by Smartwool.
I find them comfortable in all sorts of temperatures, they tend to be pretty much odour- free even after extended periods of wear and they do tend to keep my feet warm.
Anyway, to cut a long story short I had a problem with one of my socks where some of the wool had started to ruck up causing a bit of a pressure point. I wrote to the UK distributor (firstname.lastname@example.org) to ask if this was a known problem. They were very quick to respond and offered to replace said socks. Well, they turned up very quickly despite the fact that they were in the middle of an office move! I was deeply impressed with the level of service.
So I now have some new socks to review. I'll give them a go over the next few weeks and let you know how I get on.