I have 3 CQBs, all with the sights. I think they are fine. Personally, I don't know about the necessity of the 'combat pyramid' as I never had a problem lining up my sights in the dark with all green tritium lamps (on my Kimber).
The Wilson set up works well, is quick, no frills, no surprises, rock solid.
Regardless of what brand you go with, the tritium inserts are a really handy feature to keep in mind. You might never need them, but in that twilight lighting when getting a good sight picture can be difficult, or in complete darkness, you can't beat them. And YES, I know you should not be shooting in complete darkenss, but just before the lights go on, sometimes it is nice to know exactly where things are and the tritium inserts will do that for you. They also make the gun easy to find on the night stand in the middle of the night.