We spent four nights at the King's Courtyard Inn for an anniversary trip to Charleston during Spoleto and found absolutely nothing to complain about.
The hotel reminded me more of a European hotel than a typical American one. It's an old building with a small elevator, an attractive lobby, and two courtyards equipped with metal tables and chairs for eating breakfast or enjoying a bit of pseudo-outdoors time in the shade, and a kidney-shaped spa in back that I never actually saw anyone occupying.
Our room (#206) was on the small side but plenty big for us, and it was bright and cozy with warm wood floors and big windows all along one wall overlooking King St. It had reproduction antique furniture (including a tall queen-size four-poster bed, which they provided a stool for climbing up on), a working fireplace (which we didn't use in late May), a flat screen TV, a large armoire for clothes storage, a table and two arm chairs in the corner, a simple bathroom with separate tub/toilet and sink areas, and free wireless Internet service that actually worked and was speedy. The rooms have real, large brass keys, which was a nice change from those stupid key cards. :) Our room was right by the ice machine and vending machines, but the noise was minimal.
We chose the inn because we prefer historic hotels, and because it was so centrally located. It had convenient parking behind the hotel ($10 a day), and we only had to use our car twice (once for dinner at an out-of-the-way Mexican place and once to go to Magnolia Plantation) because everything was in walking distance or there was a DASH bus stop directly across the street (the Clifford St. stop). The City Market is literally two blocks away from the hotel, yet King St. is pretty quiet at night with all the shops closed, so there's no drunken carousing noise to contend with. The inn itself also seemed quiet - I think we were the most rabble-rousing of the bunch, tipsily eating our dripping ice cream cones from Kilwin's in the parking lot late at night.
Also in easy walking distance are the Four Corners of the Law, Marion Square, Poogan's Porch restaurant, and Museum Mile. Ooh, and there's a very cool gallery on the corner down from the hotel with incredible vintage advertising posters.
As for the staff, those we met were all friendly and helpful. We had breakfast delivered to our room on two mornings - once the free continental breakfast (a basket of yummy pastries and our choice of juice, milk, coffee, etc.), and on our final day tasty omelets. We never ate breakfast downstairs in the dining room with the other guests or participated in the afternoon wine service, so I can't comment on those.
We had a great time at the King's Courtyard and we'd definitely stay there again on another trip to Charleston.