Ling's place is impeccably clean. It is very convenient if you are commuting with Caltrain. The finishes are nice, and I felt perfectly safe.
This is not a great place if you plan to work from the apartment, the Wifi is OK, but not strong enough for long video calls. The sofa bed would really only be conformable for a child or small person. I managed to sleep sideways to avoid the bar and it was fine for me, but anyone taller or heavier would have a hard time on it.
It is in a neighborhood with kids and families close by. This didn't bother me, but occasionally neighbor kids were loud, never past 9 PM.
I loved it, and would stay there again. It was perfect for my daughter and I to be together (but sleep in separate rooms.) Transportation to SF couldn't be easier. I even was able to walk to Target to get breakfast supplies and snacks the first day there. The kitchen was clean and had the basic stuff. The bathroom was very clean and the one bed was comfortable and nice. Perfect for a couple with a child to sleep on the sofa bed.