Glasers have their uses, but I've moved away from them.
One incident was of a BG inside a building when confronted by police. Instead of standing still he reached for a pocket with one hand, pivoting to that side and brought his arm up as the officer fired a 9mm Silver Glaser round. The round struck the BG's forearm and bone, leaving a crater-like wound. BG ran about 10 yards, fired 2 shots from a .25acp and was answered with 4 rounds of Remington 115gr JHP's which made him DRT.
The other known incident was a Clayton, CA police officer who lost his .357 in a roll-in-the-roadside-dirt encounter and was shot under the chin with a .38 Blue Glaser at contact distance.
He survived with some very serious facial, dental and sinus injuries. He described it like being hit with a baseball bat with Lou Gerhig on the other end.
The main problem with frangible ammo within structures is that they typically require something harder than themselves to disrupt their cohesion. This means you need to hit a 2x4 stud in the wall. Simple sheetrock and insulation won't stop a Glaser. My worry is that a round fired at a BG will hit something -- his belt buckle, jacket zipper, a zippo lighter in his shirt pocket, and become worthless.
For indoor shooting, using a 110gr projectile seems like a good bet. It'll certainly go through walls, but it stands a good chance at terminating in the 2x4 studs, a door, the 5-lb sack of flour in the pantry, etc. However I don't have enough confidence in the 110's that a single shot will stop an angry BG either!
. I just got one of those and was told that it doesn't have the penetration and power of an AR 15. After viewing that site, no matter to me now. Maybe it isn't an AR 15 but it is still one heck of a round. Certainly no wimpy gun. Penetrated everything in front of it and still took out a big chunk of concrete. That thing will penetrate a car door or maybe even body armor just as effectivily as an AR 15. One my have less power but both will get the job done. 
