I have had wonderful experiences there all but once, and that one time had to do with my arriving very late for check-in due to a five hour flight delay, so I couldn't get the non-smoking tower room that I wanted, I instead had to get a smoking room which they had housekeeping go and scrub down completely to get rid of the smell for us.
The transportation buses leave for the parks every 15 minutes, except for the Animal Kingdom bus that leaves every 30 minutes. The Grosvenor is the last stop for the transport buses out of the hotels on Hotel Plaza Blvd, so expect to find a fair number of people already on the bus. When you are dropped off at the parks, you will be exiting the bus in a specially designated section of the parking lot and you will be looking when you return to the bus, for space #26 as this is the one for the resort buses. It will not drop you the same place as the Disney Resort Buses do. I have to say that I really like having the breakfast buffet there since I can usually eat and drink enough to last me until dinner if I have a light snack in the afternoon. If you have anyone in your party with food allergies, they are very accomodating, just let them know. The hotel has a bit of a Sherlock Holmes theme and in the restaurant, "Baskervilles," you will find a replica of Sherlock Holmes' study which is very neat. Goofy and Pluto come around to the tables for pictures at breakfast. There is a cafe in the lobby open 24 hours, so if you get thirsty or hungry in the middle of the night, you don't have far to go. Also, if you can get it, try for a tower room overlooking Disney. The view is fantastic and you can watch the fireworks for Illuminations from your room.
