Bear in mind that I've only had mine a month, but here goes:
Mast clamp is excellent, I've no complaints, apart from the uphaul hole having sharp edges that can fray an uphaul rope.
Leech end is OK, as I wrote in the review it's not as easy as just pulling a loop through the sail and slipping it over a rounded bit of plastic, you have to thread the rope through a couple of pulleys each time you change sails, but it's not a big issue. Takes an extra ten seconds max.
Certainly well worth the price, when you compare it to a North or Pryde boom