I am not a fan of the MP40 noise. I clean mine often, even bought a second wetside so I could do it weekly with ease. They are just loud.
The flow pattern is great, I love the batter back up options, the things are just to loud. Everything else is great.
I currently have an MP40 on my waterbox 220, with two of the AI Orbits and a Octopulse pulse 4. I run the MP40 at max 30% so it's not obnoxious. I kept it because I have the battery back up and if there ever is a power outage, it could be important. But I can't run it above 30% of the noise bugs me.