I have had Tibbs frankies all around Mumbai.. But since this was the closest to home , i went here more often. Been here 3 times. Always got good frankies. I always made sure to make the people taking my order chilled out with my order , i tell them "Bhaiya time ka koi tension nahi hai.. khana mast hona chahiye". And there you go , in 5-10mins an awesome frankie.. good place to go pick up you frankie and walk off (after you pay your bill) ;)
But if you really like frankies a lot i'd recommend trying Breadcraft in the main lokhandwala street.