In general, Lagos is not for the faint hearted. What Herbert the cat said is all true.
Major problem is the location of the crew hotel on one hand, but on the other hand, with the traffic in Lagos it would not make a lot sense for hotac on VI. The hotel itself is poor standard but I have heard that they are supposed to have their compound ready soon. The location problem would be the same.
As for the hours, prepare for 120 and beyond and do not get sick. That phrase is not in their book.
As for the pay, insist on that you get your pay for rotation leave right away, and just quit if they don't come up with cash right away. They are in trouble as many PIC's do not come back after first or second rotation.
They are currently looking for a new dir flight ops. The guy, I have seen there a bit over a year ago was an a............