The unexpected thing about a high-end hotel like the Crowne Plaza is that apparently most of the hotel rooms here have only showers, without bathtubs. Lisa really wants a bathtub. The first room we had didn't have a bathtub. We went downstairs and they tried again. The room they gave us was nicer, being a small suite with a separate living room, but still has only a tiny shower-only bathroom. After discussing our options with the hotel, Lisa said that she'd tough it out in exchange for having the otherwise nicer room.
On the bright side, my Platinum status gives us free breakfast. There is also what is described as a 24/7 Refreshment Lounge, but it was locked up and dark when we had a look after checking in close to midnight. We also don't know downtown Detroit, and unlike downtown Chicago, it doesn't look like there are convenient 24-hour places where we could go get something tonight. We'll do some exploring tomorrow, inasmuch as the convention doesn't get going until later in the afternoon. And that is good because we're tired from travel and need to get some sleep, albeit that we need to be up early enough to get the included breakfast.