Short yes/no questionnaires. Each one takes under a minute and goes straight to me — no account, no email required.
The crossover control for a Sub — whether it shows up for you, and whether changing it actually changes the sound.
Speech Boost on a soundbar — whether it works in Somos, and how it looks in the Sonos app.
If Somos cannot see some of your speakers. This is the one that tells me whether it is one system or two, and how your network is arranged.
Got something that is not on this list? The support page reaches me directly, and suggestions are read too.