Quality
We tested it out and we got to know that we need some pre cleaning. Then it worked acceptable. Do not expect that the windows are as clean as cleaned manually. But it does the job on windows high up and difficult to reach otherwise.
The second time we used it everything started well but suddenly one side of the cleaner started making a terrible noise and stopped.
We took it in and I dissembled it. A cog of a tiny cogwheel was broken (see pictures).
Verified purchase: YesCondition: New