I called for a lift one night and a pleasant asian lady picked me up: Vicki. She was rather friendly and cool, but like any other cab, their driving scares me. Best not to watch 'em.
My 2nd time was at Las Vegas Choppers. Make sure you check-in with the cab company (any, in general) because my initial lift was an hour late. I called again, they sent another cab and this one arrived in 10 min.