I stayed at Ariels place for two months when I was working at UCLA. It was close to UCLA, about 25 min walk. Close to Westwood village with shops and restaurants. Close to public transportation. Save neighbourhood. The apartment was great and very clean. I had my own room and bath and access to kitchen and living room. WiFi worked fine.
Ariel was a great host! Nice and helpful, and very easy to share the apartment with. He showed me a lot great places. I can only recommend staying at his place.