I stayed at the Grosvenor about 8 years ago. It wasn't bad...it was a nice hotel. But, I wanted to warn you about something. when I checked in, I owed money, so I wrote a check. The woman said she also needed an imprint of a credit card in case I made phone calls and didn't pay. I asked her if she was going to charge anything to the card and she said no, it was just in the event I skipped out on the bill. So, I give her the check and the credit card. I went to buy something the next day and the credit card was denied because there was a hold on the funds. I was 18 years old, it was my first and only credit card and the hotel charges maxed out my meek limit. So, now I couldn't use the money on the credit card and I couldn't use money in my checking account because the check was outstanding and I didn't want it to bounce.
There I am in Disney with no money. I borrowed from my parents. I go to check out and I'm told I can't because my room wasn't paid for!! I told them I paid them TWICE!! Apparently what had happened was the woman took my check and locked it in her locker and went on vacation. She also never put the charge through on the credit card, but the hold on the money was still there. They wouldn't let me leave until they got a locksmith and busted open her locker and got my check. I almost missed my flight home. They did get my a Tiffany Town Car to the airport to make up for my troubles, so they did care about the inconvenience.
I'm sure my experience was a freak accident, but just make sure you're all paid up before you check in!