I stayed at the Lidos hotel for 4 nights at the beginning of August 2008 with my friends.
The hotel is really basic, but in a good condition, the location is the best part of it, in the middle of Belgrave Road, a 7 min. walk from Victoria Station.
I booked a quad ensuite, the price was really good for the location and the service.
The breakfast was terible though.I would reccommend this hotel as it is value for money, just don´t eat the breakfast.