Hello Bro,
first, i want to say congrat on your offer.
well well, all about lagos. i would like to know where u are from, your budget, your job, size of family and your taste before i can give a tailored answer.
lagos is relatively safe, depending on where you stay.things are relatively cheap depending on where u are coming from and in terms of education,except universities, you can find schools with international standards.
one more thing, lagos has a very big market which means that whatever you do as long as you it well, you will surely make money out of it.
you can mail me for specific questions on send it here for others who might be needing it.
ik from lagos