Can't say enough good things about this place and our experience here.
First off, make a reservation, it's worth it. This bar is small and intimate by design so if you want to take part in it you should make a reservation in advance to ensure you get a table.
We showed up for our reservation, and were pleasantly surprised. Unlike some of the other "speakeasy" style bars in Gaslamp, this one did not have hoards of people waiting to get in and ruining the secrecy of the bar. We made our way to the entrance (very cool) and we're shown to our table. The inside of the bar was very unique - skulls on one wall, art mounted on the ceiling, and a very well stocked wall behind the bar.
The bartenders were great, they do "dealers choice" and don't work off a menu. So we were asked what our preferred base spirit was, style preference and any flavors we love in particular and from there they put something together. We each had 3 drinks and they were delicious!
Thank you so much Noble Experiment, we will be back!