I made this as per the instructions using dextrose. It fermented right down to 1010 and cleared quite nicely after putting in secondary for 2 weeks in my garage in the winter.
It was pretty good after a month and didn't change significantly afterwards. Carbonation was alright, quite a small head that fades away fairly quickly.
I was impressed with the taste of it. It's nowhere near as complex as many commercial triples but it tastes smooth despite the strength and is a pleasant drink. It's also very easy to get right. If you like Belgian beer and want to do kits then I'd recommend this as a great starter.