Overall, the Cosmopolitan suite is somewhat middle of the road for the price. The location certainly is convenient for getting around to the busy parts of Austin. However, this also means that there are a LOT of drunken activity at all hours during the night. Our party were kept up well past 2 AM Thursday through Saturday night because of the aggressive yelling, drag racing, and emergency vehicles (this place is 2 blocks away from a firehouse). The walls are thin so we could hear everything. The accommodations in the apartments were mediocre. The beds certainly were comfortable, but the sofas / couches were dilapidated, generally moist, and offered no cushion support. 3 out of the 6 dining room chairs were broken, and the dishwasher did not work. The main TV in the living room had an abnormal magenta hue to it and frequently did not work.
If you're coming into Austin expecting just a place to crash at night, I think the Cosmopolitan suite would be fine. However, given the price and how it was advertised, I think you're better off looking elsewhere