To be honest, I don't see what extra beneficial experience you get by flying around cessna for 1500 hours in a VFR environment. Flying a jet is totally different. But I would like to know which specific skills are gained by doing this kind of flying before flying a jet.
I work for Ryanair, which is an airline that recruits lots of cadets. There is a wind and vis limit when you are a inexperienced FO.