Both, the customers who complain about this have not understood that a cordless vacuum cleaner has several runtimes. The up to 60 minutes apply when vacuuming on the first level. If the maximum suction power is called up, the battery charge is correspondingly less long and it is then up to 15 minutes, for example. But that's okay, because the suction power is much higher in turbo mode. It's certainly good for carpets if there are deep pile carpets. All other vacuuming jobs can easily be done with the first level.

Generally, rating a device as bad just because it only runs for about 15 minutes at the maximum suction level is something the reviewers didn't quite understand.