As other's have pointed out Basil is Thai food with a modern decor. We had a late dinner Sunday after 8pm in mid-June. We we were able to walk in and immediately be seated. As you would expect on a Sunday evening after dinner hours the restaurant was mostly empty with a few people off the left in the bar.
We were seated about halfway to the back. In the very back of the dining room there is a table for maybe 10 people. There are curtains that could be closed off if you have a group that wants some privacy. Seated looking over the kitchen we didn't hear anyone from the bar only the downtempo electronic music floating gently through the space. The lighting is dim without being dark. The kitchen is of polished steel and glass such that you can see the staff preparing your meal, but the partition does not extend so low that you can see exactly what is being done, only their general movements. Basil Thai definitely comes through in atmosphere for cool, modern decor for intimate dinner.
The other part of the Basil Thai equation is of course the Thai food. Basil Thai is modern in its decor but not so much its interpretation of the Thai cuisine like you might find in the application of Indian food at Copper. They prepare traditional recipes in flavorful and satisfying ways. We started with their Basil Roll that is their interpretation of the spring roll. It is as you would expect, light refreshing and an excellent choice for an appetizer. What will surprise you is the different type of sauce they pair with the roll. I had the Crispy Red Curry Duck. I have not had this particular dish before but I found it wonderful. The skin was tenderly crispy and the sauce was rich without being overpowering. If you prefer a spicer taste you will want to ask for it. The portions are generous that I had enough for lunch the next day. My girlfriend had the Pad Thai and was very pleased with it. Most of the entrees have a reasonable price and while the duck is on the highest end of the menu it's a good splurge.
For good Thai food in a quiet setting downtown different that your traditional ethnic setting Basil Thai will serve your well.