Musik HUG in ZH are the best. Watch out - Monday is closed and they operate on reduced opening hours (Kurzarbeit).
I bought mine for a few hundred francs, it just costs more to maintain but we are happy with it. And piano tuners need work. Thankfully, we are a very music noise conducive building and play whatever instrument at any time
Maybe buying is cheaper than renting, you can still sell it if you move out of CH.