This is just my two cents: I went with the 510 tank system. I didn't want an ego (price and size) and when I started I knew nothing about mods. So I kept it simple. I started with the 510 regular atty's and carts, then went to the tank system and love it! I don't have to top it off, there is no chemical taste that you get when the matting burns just a bit. The only problem I have had wasn't the tanks fault, my juice went bad due to heat in my work van (and I loved that peach too

). From what I've seen carto's and carts are just way too much maintenance as far as topping them off etc. The ONLY downside I've seen to tanks is more fluid use. My carts would use about half the juice but I got about half the hit. However cleaning the tanks is easy, just rinse them out with warm water and let air dry.