I love having this service option. Though I don't do many outcalls I do offer my clients a driver who brings them to me and around the city when in town. It has saved them and I a lot of time and hassle with directions, getting lost, and being prompt. He also serves as a bell hop if needed, all for one inclusive fee.
I have known this person over 6 years and trust him with my life. He was my friend long before I ever became a provider, and cares not to ask questions.
I wish you the best of luck.