Fast delivery and timely. Delivery Person affable (which is not the rule). Satisfactory product to replace the same model bought 6 years ago and a little tired now. It's a shame that a product of this price does not hold any longer. The old model still walking though the battery for brushing should be constantly recharged. The Oxy-Jet was not working in single-jet I did not like at all. I am curious to know how long will the new. The planned obsolescence?