We enjoyed our two night stay at Le St-Martin. The room was lovely, albeit somewhat small. I'd like to stay again in the winter to enjoy the in-room fireplace. There are many pluses to this hotel including the free wi-fi, complimentary snacks, (small) pool and deck, comfortable beds, a great restaurant and reasonable rates.
As others have noted, I wasn't impressed with the front desk staff. I did find them to be frosty and thus my rating of four stars instead of five. One actually argued with me when I asked if we could get a bath mat to lay on the floor outside of the shower. I told her that the woman who cleaned our room took ours and didn't replace it. The lady insisted that the hotel did not have bath mats. I asked what patrons used when leaving the shower so they don't slip and her reply was to lay towels on the floor.
The staff at the restaurant, valet and house cleaning staff were all pleasant. The front desk staff could use some lessons in customer service from the staff at Loew's Le Vogue.