First: Arik Air has no old F-27's. They have F-50's and DHC-8's on lease from Denim Air (a company based in the Netherlands).
Their B737-300's are ex-USair or ex-United, the CRJ 900 and B737-700 came brand new from the factory, just like their newest acquisition the A340.
Lagos is a sh!thole. Sorry, can't say it any nicer. Don't use credit cards unless you absolutely know who handles it. Use a laptop computer with a very good firewall. It is not a place to leave your hotel, and even hotels do get robbed. The locals will not go across the causeway from the airport to Victoria Island after dark because of numerous robberies, usually by folks dressed like police. VI has a large buisiness district and some big hotels. One of our mechanics got held up right outside the airport gate by a police-look-a-like.
The hotels are EXPENSIVE! The Sheraton asks $450.00 a night for a simple room. We stayed at a little place that charged $280.- a night. I have stayed at some very nice hotels in africa that were less than that. Food is along the same lines.
The clock ticks on african time, it's slower than island time in the caribbean.
The airspace around Lagos is nothing like you've ever seen in your life. Everybody speaks at the same time, no delays expected untill 5 minutes later you are 10 deep in a holding where other people decide to squak the same code. A controller who cuts off the most important info so you have to ask again, a radar that operates occasionally and the most important info they want to know is tail number, souls on board and endurance, and where you came from.
Weather is like Miami on a hot day. 95F with 95% humidity
Have fun