I guess it depends on one’s budget. The days when I could waltz into a top branded 5* joint (and stay there) are long gone.
The views on the upper floors, and from the Restaurant are very good. Road noise was not something I noticed although you are quite correct in saying that it is not a quiet backstreet.
I found the hotel to be excellent value for money, and in the 3*+ range of things. You won’t bump into rock stars and celebs for sure. I’d certainly stay there again, and I am moderately fussy about quality of room etc.
Oh, and my client was in the next door building, but I accept that a 10 min walk or cab ride might be order of the day to get to where one needs to be!
Excellent pub across the street too. Wonder if they are watching the 2nd test there later this week!