Honestly, Green Iguanas are a pet you must be DEVOTED with or else you'll hate having one. I personally will never ever have another Green Iguana after my Roxy passes away (heaven forbid)
They eat so much food, crap a lot, have the ability to ruin things including the skin on your arms and neck, they are powerful, they have a "I am the boss" attitude in most cases and need constant affection and time spent with them.
Not saying they have no good points though! Just with Green Iguanas, there is as much bad as good. They can be intelligent, emotional amazing creatures, and Roxy gives me a laugh everyday