 Wifi connection is very poor it is extremely slow unusable There was a visible spot on the bed linen the one that are resistant to washing machine We did not care that much and we did not complain about it anyway they changed them in a couple of day 
 The position is great it is just next door to the tube station and to Westfield shopping center so you do not need to carry with you your shopping bag all the day They offer you bottle water They change towels every day The room and the bathroom are quite big for London standard The staff is very kind and they also carried our bag on the stairs 