I stayed at O's place for 5 days to attend a conference and I couldn't have been happier with my choice. It's located perfectly between the LA live area and the usc. You can easily walk to either. The neighborhood is safe and there is a coffee shop right around the corner.
The house is clean and decorated with style.
He was always available to help with information or advice and a real nice guy.
If you want to stay in DTLA, I heartily recommend this place!