I have had the regular 9300 for 2 years now and it works great. It picks ups the trash and debris off the bottom and agitates the sides removing any alge or loose scale. The weakness is the junk basket. If I forget to clean it often, the mesh tears away from the frame. The pump just wants to suck more junk in. It is my fault for not cleaning it out more often. Recommendation: Get one. I do wish Polaris would build a solar cell adaptor power unit.