London hotel

I'm traveling to London next month and need some recommendations for a hotel I'll be by myself fora few days before meeting my son and since I seriously cannot read a map I'll need a good concereige to give me step by step directions  nothing to expensive I'm older so it doesn't have to be hip.

If you had a specific area that would be helpful, ie: Kensington, Knightsbrige, Marylebone....

N,S,E,W?

we're fairly open as to area I think.  It needs to be safe and fairly near an Underground station.  

I loved staying at the Basil Street Hotel in Knightsbridge (located behind Harrods).  Very centrally located, near all shopping and the Underground.

http://www.tripadvisor.com/Hotel_Review-g186338-d1170245-Reviews-The_Basil_Street-London_England.html