You can't beat the Chicago skyline, marina location one of the best on the lake. Walked to museums and restaurants. A bit noisy, perhaps, but you trade it for the spectacular view. Staff is friendly and very responsive.
Facilities is a big disappointment - I felt I was back in USSR. Shelfs of the marina shop were empty. Store itself opens pretty late - good luck finding ice if you leaving early, plan accordingly. Bathroom/toilet is in sad shape - weren't dirty, but dilapidated, bare concrete and scary looking fixtures. Its pretty expensive marina (double or more the price of the others), plus electricity is separate charge. I hope they will bring the marina building from the prohibition era into the modern time soon, I'd be happy to visit again and give 5 stars.