It's pretty handy for quick top-ups. It's not super fast, but it gets the job done. I'm still pretty new to it, so I haven't had a ton of experience yet. But so far, so good!
I got a 2.3kW granny cable and a 500e wallbox with my newly bought 500e. Check with your dealer to see if they're included in your purchase. The wallbox can be upgraded to 7.4kW, but you'll need an electrician to do it.