Not yet. It has it's utility, but if I had to do it all over again I'd buy a rotary extractor instead. You see, I have a Cimex I use on most commercial, so I really needed something for powering through trashed residential. While the Zipper will do that, I'm beginning to understand that it's not the idea tool for the residential environment. So, I would consider selling it and purchasing a RV XL or Hoss, but I can't really be certain those would be a great choice either since the same shills that convinced me the Zipper was all that and a bag of chips for residential are the same posters saying the RE's are so wonderful.
So, the only choice I have is to buy one, and ACTUALLY PAY FOR IT, and see for myself. Since my game plan is not to be a shill, but great cleaner who can be trusted to give out honest, sound appraisals of tools and methods.