AquaC Remora-S vs. Tunze 9002

Hey guys! Hope this isn't an over done topic but it is exactly what the title states. I want to know your opinions/experiences or what you have heard about these skimmers pros, cons, etc. This skimmer will be going on my 20 gallon rimless tank. I will have a heavier bio-load and that's why I am consider one of these skimmers. And yes I will be keeping up on regular water changes but in the rare occasion that I do get lazy or am not available for the water changes I would like the skimmer to be there to be able to pick up my slack. I am just having troubles deciding if I want the Tunze that goes inside the tank or if I should go with the HOB AquaC. Any and all information would be greatly appreciated. Thanks!