As a photographer I think its very important to have an engagement shoot with your potential wedding photographer for many reasons. Your wedding photographer might be one of the best out there but thats their photography ability not their personality he or she may be a total ding dong. Its also good to have a shoot because you want to know if their style is something you like. The best way to see this is by looking at pictures of you both in. Another reason is too start building that rapport with chosen photographer.