I stayed at this Doubletree for the duration of the Bead and Button Show (and a few more days besides) and I was extremely happy overall with the hotel and staff. I would say that the location is not that great because there tends to be a bit of 'mugging' going on outside by people begging for money and after you've given several times a day this tends to get a bit much, and because of that I was not so happy wandering around on my own after dark in the area but that is out of the hotel's control.
My room was always spotless though I was a bit disconcerted to find that the maid had decided that the teabags I had brought from the UK in a bag were where for some reason I might be storing old used coffee bags, and had added all the old coffee bags to my tea thereby rendering my tea totally useless (next time I will hide the stuff).
Other than that, I can honestly say I was very happy.
The front desk staff were always there to help and as a single female traveller visiting from outside the country it made a big difference to have people saying hello, good morning and welcome back as and when I left the building.
I used the restaurant just once, but what I had was fine, no complaints - though the restaurant was eerily empty. Parking and driving to the location of the hotel is easy (even for a Brit!) and I do believe the parking valets shared the same sort of relief as I did each time I made it back to the car park with the car in one complete piece. Valet parking worked perfectly, it was not a pain at all to wait a few moments for one of the guys to bring the car down from wherever they'd put it once I left it with them - there seemed no expectation of tips as when they were offered they were accepted, but with some surprise (maybe that was because a British person was offering a tip!).
There are a couple of little mini-mart type shops nearby that have scant food and drink offerings but are ok for stocking up with milk etc. There is also a Starbucks just around the corner. I'd recommend anyone staying at the Doubletree take a short trip with their car to the Milwaukee Public Market to buy some yummy stuff to stock their in-room fridges with. There was always tea and coffee in the room - a microwave and the aforementioned fridge swung the balance for me when I was deciding between hotels in the area as I knew there would be days I would be so busy I would not have chance to go out to eat.
Its not in the best of areas but the staff do go out of their way to look after their customers - I always felt safe inside the hotel. As long as you are aware of your situation at all times and remain focused on keeping yourself and your belongings safe whilst walking around after dark and exercise common sense I am fairly sure Doubletree customers would be fine. Daylight hours were generally OK.
I'm fairly sure I'd stay at the Doubletree again when I go to the Bead and Button Show next year, its a great base. I did have the opportunity of checking out a couple of the other hotels in the area whilst I was attending classes and the Doubletree compares favourably. Their best asset is their lovely staff at this location.