I have shot glocks, handled them and they functioned alright, but they are still working on old polymer technology. the new SA XD series are much better IMO from a shooters standpoint, a feel in the hand standpoint and overall reliability standpoint.
Even Rugers new line of pistols are better than a glock IMO.
that is just me though, it is my opinion and I am not out to bash glocks but you do hear a lot more stories of a glock blowing up, especially the .40 cal versions.