Glock 26 is a really nice gun. I have owned one for about 8 years and ccw'd with it for a long time. But I did find it a bit boxy an difficult to conceal without imprinting during the summer months and in cooler months with regular fitting jeans. If you wear baggy or loose fit you will be fine.
So now I carry the pf-9 cause I prefer snug fit attire. I still own and have the glock 26 but to be honest.. I never shoot it anymore as it does not fit any role for me anymore.. If I want to go to the range for some fun shooting, I use a Ruger P-95.. For ccw practice I stick with the pf-9 as it conceals very nicely for me.