Lux is a fun environment, with decent coffee and good tea. I have not tried any of their beer or drinks.
If you want a study location, this is a busy place; if you like a lot of noise and lots going on around you then this is a good place to study, but if you are one who needs peace and quiet to study I would not recommend here for that.
Overall, I think its a fun place to hang out and chill with friends, not necessarily great for studying