When I visited my last district convention, the neighboring congregation organized a hotel. They did not follow the Society's advice to chose a hotel from the list but rather booked a hotel through the bus company.
Now, the presiding overseer visited that hotel and didn't like it. So, he cancelled it and booked another hotel.
The congregation was quite surprised when they found that their convention hotel was right in the middle of Frankfurt's red light district. In the streets around the hotel there was nothing but brothels, strip clubs, table-dance bars etc. There were even shootings at night and whatnot.