I purchased the Edimensional glasses and have used them with several games, including Aces High. The effect is truly stunning. The practicality in AH is not stunning, however. You have to turn the gunsight off since it produces two images and therefore two aiming points. (the gunsight image in AH is focused inside the cockpit instead of several hundred yards in front of the airplane. Hold a finger a few inches in front of your nose and focus to a point across the room - you see two out of focus fingers. same thing as the gunsight image). That fact alone makes the ED glasses unusable while fighting. The mouse pointer also becomes two images and neither of them work when trying to select and item from the menu. The clickable point is actually somewhere between the two mouse pointer images.
Offline, when just flying around, the visuals are really amazing. They are a kick. There are other sims, like Flight Sim 2002, that work great with the ED glasses. Janes USAF Fighters works as well. The 3D effect is that some images literally float between your head and the monitor while others lay many feet past the back of the monitor. The larger the screen, the better the effect.
While light in weight, they do get tiring after a while both from the pressure on the bridge of your nose and the constant flickering. The effect is an all or nothing affair. With the 3D software running, the alternating split image on the monitor is all but unusable without the glasses on. The ED software works well though and only starts when you start a game. Exiting back to windows turns the 3d software off and the normal screen images reappear.
Bottom line. They really work. For the low cost, they are a heck of a bargain for the technology that they introduce to the desktop. But their usefulness in AH is fairly low unless you just like to fly around while sightseeing.
MiG