I booked Max Brown because I'd passed it on a previous visit to Düsseldorf and it looked supercute and fun. It was, but with some distinct problems.
First of all, rooms are tiny. TINY. I was staying by myself so I had no problem, but had I brought a friend or partner we would have had trouble getting comfortable. Next time I'll either book a bigger room or make sure I don't spend too much time at the hotel. Walls are paper thin. I heard TVs, bathrooms being used, and yes, some intimate behavior as well. What's more, I was booked in the '03' line, which was right next to the elevator shaft. It took me about a day to realize what those constant metallic clanking noises were, but they kept me up at night AND woke me up in the morning.
Internet, although free, was unreliable. It worked, but since you had to click a "Terms and Conditions" button and physically connect through a separate pop-up window each time, if you left your computer or device alone for 10 seconds it disconnected and you had to go through the process again. A bit ridiculous.
Lastly, I was rudely awakened on my final morning at 8:15am by housekeeping. I've stayed in hotels my entire life and have never EVER had this happen. I mean, wouldn't you at least wait until after breakfast? In any decent hotel, housekeeping would have a list of those checking out every day and of course would wait until those people had left. I was checking out at 11 and had consequently set my alarm for 9. Why were they so desperate to clean my room at 8:15, when even most business travelers might not have left the hotel for the day yet?
All the same, I thought the bed was exceptionally comfortable and bathroom large. I liked the bath products and the shower pressure was excellent.