If you win enough money in your job to see SP, I cant see any benefits.
It seems megafun from distance but in reality, a business is a business. After 6months you see the SP as if they were your employees in any others businesses... I used to work in a very fun business, all my buddies told me I was lucky, but in reality you forget the funny part of the job quite quickly, a business is a business...
It's a lot of work and a lot of problems due to SP's weird personalities, legality and potential dangerousness of competitors.
You could think that you can fuck for free, but in reality if you fuck your employee, there is a price to pay on the quality of your business which is by far more expensive than what you would have paid to fuck her as a client. You also could think you will be able to date them easily, but hey do you really want to date a SP who do it cause you're her boss, is it really the perfect mother for your future children ?
So IMO if you think you can make a lot of $$$, do it, but if you wanna do it for any other reasons (sexual), avoid...