I've heard they're nice. Quiet. I used to like the rev of a real engine. Not so much anymore.
While the impact on the planet is less as far as air pollution is concerned, there's still other environmental impacts from mining for the ore or minerals needed to create the battery or other lightweight components of electric cars.
I imagine there's less concern on other worlds, given the technical advances you've experienced so far. Sadly, we aren't quite there yet. Here's hoping that will change for the better.