Hotel Delmano is not a hotel it's actually a cocktail bar. I'd actually say it's one of the best bars I've ever been to. It has the best decor I've seen in a bar. The huge antique mirrors which adorn the back of the bar show signs of age with rust stains coming through the glass. There are a load of antique rickety looking shelves which contain all the various booze bottles used to make up the drinks. To get to the higher shelves a library ladder is used.
If this bar was in London I don't think it would be as nice, as in London it would be full of pompous twats. In Williamsburg New York having an expensive cocktail is not just the preserve of the twat and quite a diverse mix of normals and hipsters can be found in the bar. That's what makes it good. You don't feel like you're out of your depth, you're made to feel welcome.
Hotel Delmano serves proper cocktails. Ones which are basically two types of neat alcohol with a drop or two of syrup and bitters. The ones that if you attempt to make at home you'll come out with perfumed nail polish. They also have a raw bar serving a variety of oysters and other cold seafood. One cool thing you can get on the menu is a tin of sardines with saltine crackers.
I went for the Williamsburg cocktail which is rye whisky based with sweet vermouth, sherry and orange bitters. Quite strong and grownup tasting. Though definitely drinkable. I also noticed that the glasses here are actually quite deceptively large. I saw the barman put at least four shots into the shaker while making and nothing was left over when poured.
Mathilde went for the hornets nest which was a rum based drink. Was very nice. Rum based cocktails are dangerously drinkable.
I also think Hotel Delmano has the greatest toilets of any bar. Look at them copper walls, antique fixtures great!