Deq is a great casual spot in the predominantly formal Ritz-Carlton. This is the perfect place for a night-cap and a little snack. Prices are a bit over the top, but that is expected given its location in the Ritz.
They serve a perfect snack size burger and some really good truffle fries. If it gets a little busy, expect slightly slower service. Drinks are somewhat subpar based directly on ice that is used. It's the small pellet ice that ruins the drinking experience. Your best bet is probably a selection of wine from their extensive list. The best seats in the house are couches next to the outdoor fire pit, especially on a cool night.
4 stars for the setting and quality food. 1 off for the ice.