I must have stayed here a hundred or more times and I collect the points on IHG hotels. This particular holiday inn is very much like all the others. The decor is late 20th century and recently refurbished in 2011/2012 providing some better facilities than previously (eg large flat screen free view tv) but fundamentally it is a little tired.
One area they have recently tried to improve is the breakfast and its marginally better than it was but for the same Monet you can go o the Riding House Cafe 5-10 mins down Titchfield Street for breakfasts to die for or for £5 eat in one of the many good cafes on Warren Street.
Stay here for the location or the price, but not if you want a luxury/romantic experience - it seems like it full of tourists and conference goers and lacks the atmosphere available in many of the small hotels around Fitzrovia. Better than the Thistle, Premier Inn or Ibis but not as nice as the Radisson Grafton or Melia White House.More