And thanks for being here to discuss all of this, and for the moral support! HAH!
So far the snapshot firmware is doing great. There is a lot of new features present that are not in the main firmware, mostly dealing with DHCP and DNS from what I can tell...
I did not have to add any packages, except for luci (and luci-ssl).
On our network, we restrict the bandwidth to the guest interface so that conencted stations can not possibly saturate the network to the point of inoperability. In the past I used the package wshaper, which seemed to fit the bill, but it was not available under snapshot.
My research pointed me to "SQM QoS", which was the only package above and beyond LuCI I installed, and well, I think we're gonna be making lots and lots of beautiful packets that will traverse the gateway in harmony. 
LONG LIVE LEDE!!!