So you clean it once every 3 months....I consider that maintenance free. My gyre was a pain in the butt but thats my experience. No way I could just let that gyre run like I do the Nero.After running Nero 5 for about a year and a half, I now need to clean it once a quarter or so, or it would become noise and push a lot less flow. Basically the same level of maintenance needed when I had the maxspect gyre. I don't believe any pump is maintenance free.