While YMMV I and my colleagues have had some success with this for business
travel. Of course it
means walking to the venue (or a taxi) but then I think that is a chance to
enjoy the local culture
and see how people in another country live.
If the location is good it can work great. At the Paris IETF I found
an airbnb apartment a block from the venue, with the benefit of having
no staff to rifle through my valuables.
In B.A. I expect most of the airbnb's will be a long way from the
Hilton so check the location carefully. Taxis are quite cheap, but
the time can be significant.
R's,
John