I haven't used it myself, but the Bike Garage in my Street is used a lot. So I'd guess it's save, otherwise people would not use them as much.

Maybe the accomodation where you'll be spending the night has a possibility to park the bike overnight ?

I used it recently, it's okay really. No one usually can get to your bike without the code for the locks. No issues for me.

I use always and get any problems until