In short: What a gem of a restaurant, fresh and delicious and the tarts are a must try.
I've been here a few times since I discovered it in Yelp eats week. The food is amazing, everything is properly prepared with flavor, texture, and presentation in mind. I've never walked out of here unhappy.
It's a very cozy place at times feels a bit crowded but everything inside is in good taste. Staff is very polite and helpful. It's a BYOB so make sure to grab a few bottles of wines if you are planning on heading there. A small corkage fee applies per bottle but not a big deal for me.
As the name indicates the tarts are the star here, I recommend starting off with the onion/gruyer tart and then saving some room for one of those deserts tarts at the end. They are amazing, and once in a while they have special seasonal creations. My favorite here's probably the lamb shank or the seared duck breast but you can't go wrong with anything you order. Keep en eye on their website, periodically there are really good deals.