For a baller time, with a JV price-tag:
Hotel Michelberger Warschauer Strasse 39-40; +49.030.29778590
Falling at the lower-end of the cash-splash spectrum, this former warehouse attracts hipsters, backpackers, and bohos. Go super-modest, and pack the whole clan into the WG (flatshare with room for six), or live slightly more luxuriously in the "Band"; a spacious roomshare w/ lofted bed that'll sleep four. Oh, and did we mention they have a foosball table, whiskey room, DJ'd lobby bar, and even their own cinema? No? Well, they do. Enjoy 'em.