I just got off the phone with Mike Yoder at Aero Crew Solutions. They charge $99 for a one hour application review. He went through my application line by line with me and had TONS of great feedback. I highly recommend their service. I'm not sure what Emerald Coast charges for app reviews, but I'm sure their service is great too. I did interview prep with them and can't say enough good things about Aaron Hagan and his colleagues.
I did ask Mike at Aero Crew Solutions about the Class 1 medical expiration. He was adamant that the airline/app system will NOT kick your app out unless the date for your class 1 is more than 1 year old. i.e., according to him you do NOT need to renew it every 6 months if you're under 40 years old. Take it for what it's worth; if you want to get it done every six months because it gives you a warm-fuzzy that your app won't get tossed for something stupid like that, then by all means, do it.