The stay at Aelpli Bar was exactly as expected - upstairs of a bar that plays music into the night. It was not overwhelmingly loud, and was actually quite lovely to be put to sleep by the music.
The shared bathroom was interesting - had to walk through an office to get there. I didn't see many people when I was there but couldn't help but feel like I was intruding a bit. However, don't let it turn you off booking this place because it is SUPER central and is so cheap for Switzerland!
Final thing - the Wi-Fi was very intermittent so it would help the guest experience if it was a bit more stable!