I like the Glock 36, I'm wearing one now.
I find it to be very comfortable being both thin and lightweight. I also have a Glock 27 but I find myself wearing the 36 more often. Odds are, if you're unlucky enough to be in a gunfight: in less than three seconds it will be over with fewer than 3 shots fired at less than 10 feet. 7 rounds of 230gr HydraShok in my G36 does not leave me feeling under-gunned. It is plenty accurate and offers Glock ultra-reliability but it sure does have a kick. Spare mags are available for around $25 but the gun already comes with two, if you feel the need to carry more than 13 rounds I suggest you look at another gun.
MANY MANY words have been written about the Glock 36 at the Glock-specific website:
WWW.GLOCKTALK.COM
take a look
Have Fun!