I saw some great prices on these lights and they look pretty decent after reading a lot of reviews of them. Does anyone else have any experience with these light that could give me some advice before I buy one? Would be apprecaited, Thanks.

I have the new 3W LED M6 in HA.  It is excellent.  I would only get the 3W version LED.  Battery life is pretty good and it is brighter than comparable 6v and is weapons mountable (of course I am not a flashlight expert - just my personal observation).  It is coupled with a Pentagon tail switch in HA - perfect match.

Quoted: I saw some great prices on these lights and they look pretty decent after reading a lot of reviews of them. Does anyone else have any experience with these light that could give me some advice before I buy one? Would be apprecaited, Thanks.

I have one.  They're great flashlights.  It's a little brighter than a SureFire G2 (or P6), but it's also significantly heavier and a bit bulkier.  It also has a clicky switch.

I have a 1W and am waiting on the 3W.  I like them.

I just got the Pelican Xenon - not the LED version.  I think that is the light you're asking about?  It is a frikkin awesome light.  I am not fond of the twist for constant on lights like SF.  Im not sure whether Pentagon is that way or not.  I went with the Pelican and I am very glad that I did so.  

This light is small, ruggedly build and bright as all get out.  haven't run completely through a set of batteries yet, so I can't say anything on that end of performance yet.  It is definately brigter than my friend's SF 6P.  The clicky switch is nearly silent - which is a nice touch.  I am waiting for a tape switch for mine to see if I want to mount it on my carbine - not sure about that one yet.

The other cool thing is that the light comes with a holster.  It is actually a pretty decent holster that includes battery storage.  Speaking of batts, it came with Energizer E2 - not some no-name batts.

Overall.  I am eventually going to get a Pentagon to compare, but right now, I think the Pelican is the best out there for the money.
YMMV
Don

ETA:  I forgot to add some features:  It has a lockout tailcap, and you can back off the tail cap so that the clickie doesn't work all the way and that it is just a momentary switch.  Basically, the tailcap can be twisted to whatever mode you want it to be.  A very useful feature if you want my opinion.

Also, the beam is well focused, with no weak spots.  Im pretty sure that it is not a shock isolated bezel, and I have no idea whether the SF shock bezels would fit, I doubt it.
D