A bit below average
Great location within easy walking distance of Buckingham Fountain and Slate St for most people. Staff were welcoming and friendly. 
The rooms were noisy on Friday night due to proximity to the trainline and general noise from the street. The bathroom had been renovated but one tap fell off and it looked like it wasn't the first time. One of only two lifts not working >24 hours made for lengthy waits. 
Bistro type food outlet adjoins the lobby for easy access to meals. 
It served it's purpose for me (one night stay) but it is not the type of room you would want to spend much time in or if this is your one big holiday of the year.