It would cover all my current expenses handily. Of course, I'm young and single but by no means frugal. (I find that the little costs involved in worrying about my expenses easily outweigh the money saved.) So this is quite an income.
One of the main questions about something like this is about who would do boring, low-paid work with this sort of basic income. What I would really hope is that people would still do many of those jobs, but for far fewer hours--largely as a way to get money for incidental expenses and luxuries beyond the basic income. One problem I find with most jobs is that it's much easier to get more pay than less hours, even if I really want the latter. There is a large drop-off between full-time and part-time work.[1]
Beyond a certain level, I would value having more free time far more than making more money. Unfortunately, mostly for social reasons, it's hard to express this preference. A basic income could make this much easier to do.
While I suspect this might not pass, I think it would be very valuable for the entire world. One of the unfortunate realities in politics is that it is really hard to run experiments; small countries like Switzerland can act as a test subject for the entire world. Or perhaps like a tech early adopter for modern policies.
Either way, this passing would be very interesting.
[1]: For me, this is not quite as simple. In reality, there are plenty of jobs where I would be happy to work relatively long hours. But this stops being a question of pay, or even "work": after all, I'm happy to spend hours and hours programming for free. Being paid to do something I really like is wonderful, but it really changes the dynamics in ways that probably do not apply to most people.