My father had bought 2 at Casto, for my brother and I, who have failed at each end of an hour (really 1 hour, not a minute longer). I have purchased another at Casto (not vindictive, eh ..) as urgent. He just fell down after 6 months of use reasonable. I have written to Bosch for a commercial gesture I expected. The concept is extremely practical I recommend but this range is to flee. And I regret not having bought on Amazon. (I foolishly lost receipt)