I have the shorter version of this. It is good for many things like stainless, and of course glass. Glass with frames, you kinda need to lift it off with one side first and wipe your ‘own tracks’, it tends to leave a pad-sized fingerprint on glass otherwise.
Don’t recommend for first window cleaning of the year. Collects dirt, yes, but you really burn through the pads like one per pane. Best to start with trad kit.
Pure water in the tank, make sure there is plenty of pads, and it’s pretty good indoor tool.