I love my black Duo boots - I have chunky calfs and they are the only ones that fit. Good if you have skinny calfs too.
They are well made - I have had mine 2 years and will definitely be able to wear them this winter and maybe even next winter too. I think they were £110 new so even if I only get 3 years use out of them that is only £36 a year. Bargain.
I have a hankering for some green suede ones but will just have to hanker as I have no idea what I would wear them with - I just like the look of them.