Hi PT,
It's coming up to 3 years since I replaced my two Intersate U220s for two Trojan L-16s. What a world of difference they have made in my boondocking life. If I had the room I would have installed another bank. Well, I guess I do have room on the other side where the genny would go, but different cable lengths to the controller are a drawback. Extra weight, too. I have one 120w solar panel but next year I'm going to AM Solar for a 400w installation.
I seriously considered AGM, but I am very happy with my choice.