I was in LA on business from Calgary, AB Canada and I found Blankspaces through a Google search. I was very pleased with my find! The staff, Jen especially, was very helpful - everything from telling me where to find free parking for the day through to letting me use a board room for a good chunk of my day so I could make phone calls.
If anything, that is the only downfall of this space, there are no private call places. I was more concerned about disturbing others than them overhearing my call.
I would work out of this space again.