I lived in South East Asia for a few months and gained an appreciation for the region's great food...so I can be picky about the Thai/Cambodian/Vietnamese food I eat here in my new home town.
Thai Basil was perfectly satisfying - reasonable price, yummy Thai Basil Chicken (can't help but love it when my cheeks flush a little bit from the heat:).
As others have mentioned - the ambiance is nice (especially relative to other places on the Annex section of Bloor which seem take take their location and price as a sufficient excuse for completely forgetting about decor). The service was fine - I was with a large group that was disorganized and ordered things out of sequence but it was all sorted out just fine.
Since I am in the area frequently I will be back, but other wise it is just another Thai place that is better than Spring Rolls.