I'm not sure how anyone else feels about it but the 'forced' Google Contacts popup details page just plain sucks. If you only have a few fields, it might work fine but if you have 20-30 fields and over 5K characters in your notes, it sucks BIG BALLS!
At the very least, Google should 'restore' the ability to revert or add a setting where we can go back to our Classic contacts detail which opens up in the full page. It worked fine for the 10+ years of Gmail and Google Apps. Why break a working system. The Google Apps and Gmail development team should be taken out the back to the woodshed and given a thorough thrashing! :(