I have everything to keg with that I use for beer. But soda caught my eye because I saw they had flavor kits for 5.99 on AHS. Not sure how great these kits taste.. I would love to have something that tastes like this on tap..
They taste good. But, you'll need a dedicated soda keg, especially if you do anything resembling root beer. Root beer and most of the darker colored flavors will impregnate their flavor and aroma into ever o-ring and liquid line in your keg system.
Soda is also highly carbed, you'll need like 22 feet of tap line to balance out the pressure or you'll serve foam and flat soda.
plenty of guys here do this, especially the ones with kids. just know what you're getting into