Only did an outcall once. It was 1 of the worst punts ever and to my house and if it had been an incall I would have walked.
Add to the above the girl, the agency, the taxi driver - all know where you live. If it's summer and light out so do your neighbours if she dresses indiscretely. Potentially she might knock on the wrong door. If she wanders off for a quick fag or whatever you might find she teafed your ming vase or van goch.
Most of the incalls I've done are to hotels and I definitely prefer them. Downside I guess is she won't have 10 clean towels a day
Incalls to houses can be more scary. The main issue being it's so much harder to walk once you are in the door and if she changes prices/services etc - difficult especially if she has other people in the house.
In regards to in calls are you not concerned about being mugged or done over
For any new girl I go with a punting wallet. Generally the cost of the punt and maybe a tenner extra. Sometimes I'll go with more if I want a 30 minute punt but might extend it. I've got a punting PAYG. I guess car and house keys but I can't imagine that would be a problem in most situations. If somebody turns up with a baseball bat demanding my cash/phone - oh well no biggy really.