So like the title says, I've never had an ebike before. My primary use would be going to work and back (4 miles each way in a suburban area) and occasionally picking up a few groceries from the store. Something that can fold would be ideal, with a step-through frame if possible although that part is less important. It seems like the XP4 is the perfect sweet spot where you're not getting the absolute cheapest ebike that is unreliable junk, but not spending more than necessary either. Seems like you can't do much better for $1000, essentially.

So is there anything I'm missing? Any problems with the XP4 that would be dealbreakers? Do I need anything fancier or more expensive? Is 500W probably enough?

If it matters, I'm fat and out of shape. I've ridden a bike before but never an ebike and it's been many years since then anyway.