Booked this hotel, mainly because it was my first trip to London and I wanted it to be easy to get to the major tourist attractions. In that sense, the location is unbeatable. Many attractions are practically at your doorstep and taxis are lined up at the curb in the mornings if you want to travel to something further away.
The hotel itself also far exceeded my expectations. I was expecting something similar to Intercontinental or other big luxury chains, but Corinthia was on another level. Check-in is much more personal and the room I was upgraded to was one of the fanciest I've ever been in. It had a huge bathtub (with a TV), electronic controls for the lights, an excellent Bordeaux in the mini-bar, and several other great features. Service at breakfast was also top notch, with so many staff around that you never had to wait for anything.
Really the only thing that could have made my stay better is if there were more power plugs in the room. If you want to have your phone plugged in and sitting on the nightstand, you have to pull the nightstand away from the wall quite a bit to get at the plug. That said, it's still a five star property in my book.