skimz

Good skimmer or not? I have a 120 gallon tall with a 40 gallon breeder as my sump. I’m currently using a reef octopus nwb-150 (if memory serves) and I’m afraid it may be undersized for my tank. I get about a 1/4 of the skimmate cup full each week. The skimmer I’m considering is a skimz sv 227...