I have a couple, on bikes that I have yet to ride and test them. I have had/have Thomson seatpost on several bikes and they're great - really nicely made. I imagine the seatclamps being equally good.

The seatclamps come in nice little drawstring bags, perfect for a 700 tube, tyre levers and a tenner prior to going into your jersey pocket. The seatposts come in correspondingly shaped bags, perfect for rolling pins or adventurously-dimensioned sex toys.