Acme is great. First of all, the location is about the best we could have asked for. We were able to walk to many of the places we wanted to visit with no problems. Second, the service is great and the decor is amazing. Its got a cool, rock aesthetic that my wife and I both really enjoyed. Plus, they have probably the best elevator music of any hotel I've ever stayed at. The bar downstairs has some tasty cocktails at decent prices, as well.
On the downside, the room was fairly small. This wasn't a problem for us, as we had activities planned for most of our time in Chicago. So, if you're planning to just use the room as a place to sleep and keep your stuff...this place is perfect. The parking cost is high, but that's big city life, for you. Not much can be done about that. All in all, I would definitely recommend giving Acme a try. We had an awesome time there.