Just picked this up today I've been wanting to upgrade my rs-75, and while at it I upgraded my HOB remora skimmer! Thought I would see what you all thought!
They are nice sumps. I really like mine. I forgot how nice they look when brand new. Just be sure to get the freshwater RO line all the way in on the float switch if you are going to use it. Also I had to put a 90 degree elbow pointed down on the intake of my return pump to keep from sucking in air. The float height is not adjustable. I am sure you will enjoy the sump. Good luck.