Quite a few years back, I went to the Photography Show (remember shows?) specifically to find a great tripod. Figured I'd be spending around £400 for what I wanted.
The Vanguard stand were clearing out the previous years carbon beast, reduced £400 to £200 (inc. head). It was so good I stopped looking and bought on the spot.
I used to use it in fairly deep water, the sea, for long exposure with long lenses - it was a great bit of kit. I got my money back 4 years later when I was trying to downsize my kit.
I then bought the (brand new at the time) Veo2 carbon travel tripod. So good I still use it
For those asking why some tripods are better - the biggest reason is stability. For example, if taking a minute long exposure with a bit of wind, it doesn't take much movement to ruin a shot. Even taking a half second shot in difficult conditions is hit-and-miss.