I run one as well, and although they are finicky, I find it to be a great skimmer. I run mine on my 72 and I carbon dose, so it really has a lot of work to do. I would go for it, $120 is a good price. I run a mag7 on mine and wouldn't go any smaller so make sure the pump your getting is pushing at least 700 gph. Also i've noticed they tend to skim a lot dryer than wet. If your the type of person who likes that lime green watery skimmate this probably isn't the one for you. Everytime i've tried to adjust it to skim a little wetter, it just overflows until I set it back to its good ol' faithful settings. And ooonnne more thing, if yours comes with the hole for ozone (right beside the air intake) make sure you plug it up if your not running ozone. If you don't it will just pull air as if the intake was fully open and you won't be as happy with the results.