I recently did 3 nights at Radisson Edwardian Leicester Square. The rooms were quite small and was a bit difficult to set up office.
WIFI was fine, no complaints.
There is horrible chrome/glass furniture. Can't use a mouse on the glass table top. Bang & Olufsen flat screen with the usual 5kg Bang & Olufsen remote control.
Large soap/shampoo bottles bolted to the wall, no other amenities.
Lobby is very small, elevator can fit 2 persons max (without luggage).
Early one morning the clerk tried to charge me 5gbp for a eur/UK plug adapter (handed over no charge when I threatened go next door to the Hampshire to ask there).
Location is ok, tube is close, but too many tourists in close proximity.
I will try different London property next week.
cheers,