The staff is very pleasant and unobtrusive. We helped with the choice of wine. I took Old Tbilisi Tsinandali for GEL 13.40. And Twishi wine for, like, 20 GEL. There are small versions of wine, chacha at affordable prices of 5-10 lari.
They talked well about the details of making wine/Chachi also showed illustrative examples.
They did not impose a choice and did not advertise aggressively.
We took a few bottles as a gift and one for ourselves to try.