I think a lot of green people hate GM and won't buy, which will hurt, and anti-EV people will be hating and bashing it all the way, but I think it'll succeed.
It's the smart choice, if GM can market it, and people will give it a chance.
The Prius is a good car, but it's not as good. It cost more initially and the price came down, and I expect the Volt will too.
You can get it converted for $11k which puts it just barely below a Volt, but without a warranty and with a setup that wasn't designed into the car. Even then the performance isn't up to the spec the Volt shows.
The Volt is the way to go because it will cut fuel consumption for the greatest number of people using the least battery material to do so.
The leaf will cut 100% of fuel for 1 person, two Volts will cut 85% for 2 people, do some minor math and it's clear the right way to go.
On top of that you don't have to have 2 cars, you don't have any worries about range and you get a nice looking, nice driving car that's comfortable to sit in.
GM's got a lot of negative press, that's the only bad thing about the Volt.