Big and busy airport with adequate choice for food...

Big and busy airport with adequate choice for food before one boards the plane. Although there are big signs showing that free Wi-Fi is available, I was not able to successfully log in despite repeated attempts and gave up. Free WiFi is available for customers at some eating places and a tip is expected for dine in customer. Be aware that all bags have to be collected on arrival at Mexico city, then transferred to another carousel even though you are on a connecting flight and this whole process may take up to 1 hour. Few airport staff can converse in English and if you have a problem, it can be frustrating to try to get help.