So, you're thinking of making the leap from Phantasy Star Universe to Phantasy Star Online 2. You know that, yes, PSO2 is free-to-play, but what else?
Twitter user Dawy posted an image that shows the difference between Phantasy Star Universe and Phantasy Star Online 2 in one fell swoop. That's right, more realistic undergarments to go with those unrealistic boobs. Progress!