I have three Champions, one the the 3500 and other two are 2000i's to parallel. The 3500 was purchased at least 5 years ago and the smaller ones probably 2 years ago. I am pleased with them especially the tech support. The two smaller ones would not run the 15K AC in camper and called support. They asked for s/n and said they needed an update. They paid for sending the two to California to be worked on. Now, they run the AC. I don't have any experience with the model you mention but am pleased with the ones I have.