If I was to separate bottled beer into two categories of quality, it would be the lesser ones with twist-off caps and those without. Generalization, I know, but there you go.
Session is my baseline go-to lager, and I place it high on the "twist-off"? chart. Its mild flavor isn't going to blow anybody's minds, but it's refreshing, inoffensive, and has just a hint of sweetness to it.
Let's face it, Full Sail hasn't set out to make anything but something that can be enjoyed for mass-consumption. You have some people over, want to serve something better than Bud or Coors or whatever, and that's the niche Session fills just fine. Thus I give it a positive score.
You can find Session in most grocery stores and bars these days.