I bought these 2 months ago because:

1. I have painful, hard-to-fit feet.
2. I needed a supportive boot for working on steep slopes in forested, mostly muddy terrain.

These boots have satisfied both my requirements.  They fit me (and my orthotics) well (US 10 EE) , they are comfortably warm and waterproof, and I can lace them tightly to support my ankles when I'm standing on a slope...

But an unexpected bonus has been their soles.  The Propet's treads stick to the ground/grass like magnets to iron... but once I get home, I stomp my feet on the doormat, and they COMPLETELY shed mud/debris without me having to hose 'em down, dig out stuff with my pocket knife, etc., etc.

P.S. They look good too. :)
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Updated on January 14, 2013.: In daily wear the boots have proven to be durable.  They have also become even more comfortable.  In short, my 5-star review has been confirmed by usage.