We stayed there last summer. Its pretty cool, but we thought the rooms were very small and we even had a "deluxe room".
We stayed with our two kids.....not recommended. Its really not kid friendly. For a romantic anniversary trip, it should be nice. There is a nice bar area in the lobby, but we didn't get to hang out there. The HOB is right next to the hotel and you should check their concert schedule. You might get to see a great show.
Its off the beaten path but still within walking distance of Michigan Ave, etc. We even walked from there to Navy Pier and we even walked back from Wrigley after a Cubs game.
If you're not already a Lowe's First member, sign up now. Just give them your number and you'll get a bottle of wine and some other goodies at check in.