We're using GMS and LOVE IT!! The support for this product is the best I've seen for any software product. I've been in the Information Technology field for over 20 years and I've not seen support like this for anything. It's pretty user friendly and intuitive. Here in PA, we actually use this product to generate our yearly reports we're required to submit.
If you have any specific questions about it, and our use of it, please don't hesitate to call or email. I'd be happy to help!!