I felt that I ought to balance the only other review of this tripod with my own experiences.
I have had the tripod for a week now, and have hd no issues with the release mechanism on the head.
The head is very solid and smooth, and the only issue I have with it is that the spirit level is at the front, so when a camera is mounted, you cannot see it.
I have used the tripod with a spotting scope approximately 0.5m long and weighing 2.5kg, and the tripod and head are rock solid with it mounted. The object in the viewfinder does not move when tightening the head in position.
With my DSLR mounted, I have found that I no longer need to use the mirror lock up function for long exposures (which was vital with my old £15 tripod), as the tripod holds the camera extremely steadily.
The tripod itself is fantastically stable and versatile, with the ability to mount the centre column at almost any angle, however, when sliding the column up and down it does feel a bit like scraping your nails on a blackboard.
The tripod extends to an excellent height - I am 6ft1 and when the legs are fully extended and the centre column is down, the tripod/head combination is at my eye level. With the centre column extended you would have to be of Valuev (boxer) proportions to get a good view.
I purchased the carrying case for this tripod at the same time as the tripod, and carrying it over one shoulder is barely noticeable in comparison to my usual work bag.