I use a Bubble Magus NAC7 on my 125 display (200 total system) and I love it. Best skimmer I've owned and IMO it has the highest production to cost ratio of any skimmer. You could definitely buy a better skimmer but definitely not for the same price.
Not too small, for 200 gals?
How is the noise/sound on the NAC7, loud or quiet? does your's use the mesh or pinwheel. I have a SRO 1000 that's seems loud (hum) to me, louder than my old Vertex 100.