It depends on what you want it for. If you only need it for short periods of time and you're always near a plugged in charger then it's great (like a cop who's never too far from his cruiser for very long). I personally like my lights for camping, and the strion didn't cut it. It was too short of a runtime with no warning before it died on me. Also, I was dissapointed in the twist on tailcap switch instead of the clicky, but I guess for law enforcement (which is it's intended purpose) that type of switch is better.
For a short while I had both a strion and a scorpion LED, and to my eyes, they both seemed to be about the same brightness for an indoor situation, but over long distances (half a block) I think the strion could reach a bit further because of it's focusable beam.
After seeing the kinds of performance of LED's recently I wanna tell you to buy something with a luxeon star in it (like a Fenix L2P) instead of a battery sucking xenon, but if the point is just to have a nice light regardless of runtime then go for this. It's bright and has a nice feel and weight to it.