By far the best one yet. Like the expanded scheduling feature, the charge and go feature if a job isn't done yet and honestly, I like the bin feature of not having to dump the onboard bin every 5 trips or so. Definitely the most suction of any previous model. We have mostly tile with some area rugs and hearing the additional CFMs crank up with the rug is detected is noticeable when it's time to dump the bin. The rugs look better and I've been able to only use 1 unit vs 2 with the smart mapping enhancement.