I didn't know Penelope that well either, but Obi...he was the first one who figured out I wasn't a normal human -- it was due to a mistake on my part, but he figured out and kept that secret. After that I talked to him many times, and I even patrolled with him at night so he would be safe.

[Well, because she can see in the dark, not because she could back him up during a fight]

I had a very good opinion of him.