The first impressions of the hotel were good with a smart, spacious reception area. We had a "Signature" double room which was comfortable for the two nights we were staying but I wouldn't have liked to stay much longer. It has a small window but with the window open there was a noise like working extraction units, too loud to sleep through so the window had to be closed. There is air conditioning in the room, but again, very loud.
House keeping was good but they kept the laundry cages next to our room, 854, and when they moved them or put items in or out the cages banged noisily on the wall, if you look at the wall when the cages aren't there you can see where the paint has been scraped off by the cages.
The biggest problem with the hotel comes from it's very design, 4 small lifts, 1 of which was out of order, covering 12 floors (14 if you count the lobby and mezzanine) at busy times you have to wait a very long time for a lift with space for you to get in.
There are 3 restaurants, the main bar, Hudsons, is very dark, the 24 hour restaurant obviously has security issues as the toilets are locked with codelocks and there are signs of damage.
I think the only way to describe St. Giles is a budget hotel.