I've had an asm g1x for about 2 years now and have zero complaints. I mesh modded the sedra, but don't think that was even necessary. It's a nice set it and forget about it skimmer. I used to have a coralife and it was constant daily adjustment, only time I adjust this one is If I do something weird (like put epoxy in the tank). I just wish I would have gotten a g2 or a little bigger. I think they are good skimmers. However, if I was looking to buy a new skimmer I would get one that has the pump built into the main chamber like the reef octopus are doing to save on footprint space. With the sedra pump and the skimmer it does take up some footprint space. Overall, I can't complain as I have had 2 years of easy skimming.