This place was just as described on AirBnB -- no false pretenses -- and yes, even though it was by the freeway, we barely noticed the noise. My five year old slept on the couch/bed in the living room and he was more bothered by the fact that he could not pull any shades on a few of the windows, but he barely noticed the freeway noice -- by the 2nd night he was sleeping well into the morning.
I stayed here for a week with my three year old and my five year old and it was great -- we ate breakfast at home every morning and we were able to walk to great shops, restaurants, and the BART station. Driving into San Francisco was not too much trouble -- so easy to access from Irina's place!