These boots are supremely comfortable and waterproof (they also look fantastic).  I have a number of pairs of these and wear them on a daily basis.  The boots aren't insulated (which I like), but offer room for thicker socks when it gets cold.

The soles of these boots wear down very quickly (especially the forefoot).  I understand wear patterns will be different for all people, but most of my shoes wear evenly and pretty slowly.  Within 5 months of regular use, I wear through the forefoot of these boots.

That said, the uppers of the boot are very rugged and durable and (after a number of years of use) don't show any signs of wearing out in my lifetime.  These boots can be resoled quite easily by any shoe repair place.  After putting a nice heavy-duty Vibram sole on, the boots are pretty much bulletproof and will last forever.

I'm not the type of person who typically will deal with things like having a boot resoled, but these things are so good, it's worth it.  Even with the hassle and expense of resoling, I still give these a solid 5 star rating - that should tell you what you need to know!