What age groups tend to visit there? and whats the bar like now?

It really depends on when you go there. All ages up to the 50s, really. Good place to do a crossword, hang out and play a board game with a group... Different seating arrangements which makes it so much better for hanging out than certain coffee chains, lol. And there's a free Pac Man arcade game there (with sound muted). :-) if you're hungry, try their great panini sandwiches!

Really any age. It mainly serves continental breakfast like coffe and pastry, with some "American like" alternatives. So it is a "bar" in the European meaning, more focused on coffe, not so much alcoholic beverages.

Very diverse

I have seen mostly groups of elderly, and college kids doing school work.