Window actuator for stair windows

Dear forum,

we have purchased an apartment from a developer and are about to take possession of the apartment. Some time ago, we already complained that the handle of the stair window is too high for us to reach and therefore we cannot use the window (see photo, already a few weeks old).

The developer has now offered to install a window actuator at his expense (see 2nd photo) so that we can open and close the window via a remote control switch. The window would then open sideways about 50cm. It would also have to be re-grooved to lay the electrical supply line for the window motor, which of course will make a lot of mess again.

What are the experiences with such window actuators? Are there any serious disadvantages?
How would you decide – install the window actuator or leave it?

Thank you very much for your assessment!

If the window is not supposed to remain closed forever, a solution will probably be needed. The motor is the deluxe version. Very commendable that this is being offered. Mechanical solutions would be less invasive, but they don't look good either. Just google hand lever. Re-plastering the one slot, sanding it, and painting the wall is actually no big deal. Motors are fine. They are usually not incredibly fast, and rapid opening/closing will cause them to burn out. The control should prevent this. Otherwise, no children allowed.

Very good solution offer: have it done. Engines and wall slots are not rocket science and are the developer's daily bread.

Thank you for your answers. We actually also find the solution with the chain drive very good. However, the window will then no longer be locked in the closed state but only held by the chain. Regarding burglary protection, that would probably be a weak point.

"Only" held by the chain ... there is already quite a bit of clamping force present But yes, it is not locked. However, at the window height, that is in my opinion forgivable. No one can reach it anyway

Regarding burglary protection, that would probably be a weak point.

You are only safe if you brick up every window opening and replace them with screens. I see it like guckuck2 - completely manageable. Why should a burglar - who doesn't know about the lack of locking - specifically choose one of the most difficult windows to reach from the outside as a target?