Pros of in calls are:
Security
No time spent travelling (if you work from home)
Normally more bookings, I would check the RB section of AW in your area and compare in to out just to get an idea for that
You can relax during quiet times
Cons of in calls are:
Discretion for the neighbours
Rent if you cannot work from home
If someone decides to out/stalk/threaten/rob you they have your address
Pros for out calls:
No mess to clean up
Easier to hide from friends, family, house mates
Longer bookings sometimes
Some clients are more relaxed at home
Cons for out calls:
Travelling time and cost
Time wasters are more hassle
Less secure for you
If you cannot clean up totally after booking, travelling home can be a pain
Lugging kit like toys, outfits etc around