I worked at a daycare in the infant room through college, so I have experience with about every bottle out there. I have not used a nuk GLASS, but I assume the design is the same as the plastic. My issue with the nuk is that the nipple collapses often. I also had lots of issues with just air flow in general with those. I have found that the avent, Tommy tippee, and dr. Browns all ventilate well, but the latter two also had some issues with leaking. We will be using avent when we use bottles. Just my two cents worth. Oh, but I don't think they do those in glass. We only ever had one that came through with glass bottles, and I can't remember what the brand was.
If it doesn't bother you to have to pull the bottle out of the baby's mouth regularly to allow the bottle to suck in more air and uncollapse the nipple, then nuk is a decent brand. I never had any issues with that brand leaking, which is good.