I don't jump at the latest, greatest gizmo until it's had time to prove itself (I still run the old Trijicon 3-dot night sights), but I heard an admittedly hard sales pitch on a podcast the other day for Speed Sights, so I cruised on over to their site, and thought they look promising?
I've heard some of these podcasters jump on something new, then later find out their newest toy falls short in certain areas - I've heard a number that jumped on Big Dots, but later found the lack of accuracy for longer shots disappointing.
The Speed Sights supposedly offer quick target acquisition, but also allow use for longer range, precision aiming.
I believe they also use Trijicon inserts for their night sights.
I'm not in the market for sights at this time, but I thought the Speed Sights looked promising enough to make me give 'em a try over my old tried and true Trijicon 3-dots sights when the time comes to replace my Trijicons.