A very unique place that should be on anyones must visit list; well, almost anyone, some friends I took listened to the introduction, then asked for beers on tap and a wine list, they aren't the target audience.
The concept with this bar is no menus, just a discussion with the bartender and a customized drink is brought out for you. In my many visits here I have only had one less than stellar visit and that was because our particular bartender that night, just didn't interact well with us, not fun, good drinks, but not exciting. Every other visit is fun with the bartender discussing your tastes and pushing you to try something new and expand your tastes.
The service is above and beyond, in fact, one visit my wife was explaining that she doesn't like Gin, and a voice from across the room yelled out "You do too, like Gin, the last two times you were here I served you Gin" Two things about this, 1) We are not THAT regular, but they remembered us 2) They push you to try new things that even you don't realize you like.
The drinks are not just mixed cocktails, but they are complete experiences, a table of four will likely have something flaming, some herb or unique fruit and maybe even a merengue.
No two visits are the same and no two drinks are the same, it is a great experience and definitely a place to go with friends you will share drinks with to try it all.
PS: I do advise making reservations, we have been lucky just walking up, but making a reservation ahead is advisable and allows you to request a bar seat which is the best experience.