Little change seen in relation to the 5 series, even brushes, brush, charger, tags ... No quieter, no less. It's hard to do without, has put before you go to work, we go and it's clean. I glue the base with double-sided for that he can move it without charge. Having been converted to irobot with PET serie5 for at least 4 years I am always pleased with the new beast. It is easy for spare parts and ca be dismantled well for a bi annual souflettage. Beware of bar chairs with foot soft pyramid, they are planted each time. If it has not evolved as it ca also means that it is a good base. Believing and practicing we are.
