Received the Meridien on my first bid (5*, Mayfair) at $180 or $219.11 per night including taxes and fees.
The best rate on their website is $461.86 including charges and taxes, so I guess I did okay. The location is superb, but as I recall from a 2008 visit, the rooms/baths leave something to be desired.
Hotwire has 5* Mayfair at $214 and $216.
Hotels.com has the Meridien at $414
Yes, I used the link for bidding. The Meridien shows up on the Bidding for Travel Hotel List as 4* rather than 5*.