i am confused a bit. but looking at the specs the typhoon 2 now looks better than the surefire and the gladius. so i guess i should change my question is Typhoon 2, I have also seen a surefire L2 which is in my price range
L2 seems rock solid. you won't get a LOW-lo out of it, but maybe you don't need such (or you could buy another light, even an inexpensive 9V battery powered Pak-Lite for task/proximity lighting and super long burn-times).
both the Glad and Typhoon II are very well made. the beam characteristics make the Glad' more of a shooter's light (tiny, VERY BRIGHT spot), whereas the Typhoon II, while the reflector appears similar (identical???) to the Glad', the LED makes up for it and give a bit more spill (or, maybe its just that the Typhoon II is 50% brighter overall, i.e. Lumen output).
the only part of the Glad/Typhoon that doesn't instill the same level of robust confidence as the rest of the light is the tailcap. my Glad' tailcap has none of the aesthetic issues that someone else mentioned. it fit tight with no wobble at all - perfect, IMO. zero complaints. my Typhoon II is the straight tailcap "flavor". yeah, it "pockets" better, but it looks like a very thin, anodized somewhat flexible sheet aluminum was "kludged" onto the tailcap in place of the lower portion of the standard tailcap (which my Glad' has). it appears cheesy, but in actual use hasn't been an issue at all (except, see below).
the part of the tailcap that might concern some is the plastic-like selector ring and button on the tailcap. could it crack if dropped from a height? don't know, but it just doesn't instill the same level of confidence in its robustness that the L2 tailcap does. however, i haven't had any trouble with either Glad or Typhoon II tailcap.
i will say that the Glad' tailcap has no trouble at all "locating" the "pin" in the groove before commencing tightening (i.e. screwing) the tailcap onto the body. this *MUST* be done on both Glad' and Typhoon or you can badly damage the tailcap. however, my particular (all????) Typhoon II with the straight tailcap is a bit of a challenge at times to get the pin "located" such that it slides into the groove. i've even "notched" the aluminum straight tailcap, using a small file, to make this easier and marked the pin's location also inside of the tailcap. the problem is that this kludged sheet aluminum lower portion rotates freely around the original portion of the tailcap and isn't fixed. even lining up my "index marks" doesn't always guarantee success the first attempt should any misalignment occur as i try to replace the tailcap. however, with my "index marks", i don't often miss more than once gettin' everything aligned.
one last point, the tailcap on the L2 is a classic SF tactical twisty tailcap, not a clickie if that makes a difference to you. at 100 lumens on HI, the L2 is PLENTY bright.