I just received my copy of Regimental Fire and Fury in the mail in time for Christmas break. I have been putting together some bases fitted to RFF to try out the rules. They are fairly simple. The book is well illustrated and gives examples. The support page is also helpful.
I really like the fact that I can create labels for units. I had fun doing various units at Antietam. I have also been able to adapt several of the scenarios from Undying Courage by Scott Mingus to the RFF format. It's easy to do; you just have to double the ground scale and number of figures per regiment. It makes for much smaller battles, but I like the larger units. They look great on the battlefield.
I am going to keep at it and hopefully have some pictures to share in the next couple of days.