The process is painless if you go to a VA approved school.. They will fill out the paperwork for you. I got the 737 type with the VA and had no problems.

However, you may want to rethink whether you actually want to use your VA benefit for this. If you served after 9/11 you qualify for the new GI bill which pays A LOT of money compared to what you would get using the VA for a type rating. I don't know for sure, but I think the new GI bill may also be transferable to your kids. If so, paying for your kids college is worth way more than a type rating.