We have had this cleaner for 12 months now and it is fantastic! We apply a wax to metal strip which, with the best will in the world, we tend get on the concrete floor which is a H&S nightmare. Normally cleaning methods had difficulty getting this up and would often leave an oily residue which was very slippy. However, the SGV 8/5 has no problem getting this wax up and leaves the surface clean and safe, sucking up all the wax and leaving no residues behind. We do add a separate detergent and this ensures a clean, dry, and safe area. Cannot fault this unit and it saves me a great deal of work and hassle.