Restaurant Kus Tba is located next to the popular recreational area Turtle lake in Tbilisi, here serves a traditional Georgian cuisine in a touristic sauce.
I have been to this place several times, I cannot tell neither good, neither bad - I'm more neutral regarding this place, it definitely is not the cheapest, but also not the most expensive, from what I have met in Tbilisi. See Tbilisi restaurant reviews.
I have my favorite Turtle lake restaurant, maybe that's way I cannot be objective today - Intelligentsia Coffee Bar Tbilisi, which actually is located just few meters way from Kus Tba.

Cozy interior at Kus Tba restraunt

Salads with chicken filet dressed with matsoni