Quite intrigued by the drive belt as well, and have been comparing different bikes (both electric and not) to get a new city commuter.
Really want a simple lightweight bike with no greasy chain, no multitude of gears and shifters (nor even disc brakes), but again, afraid the (too nice? novelty?) bike will draw unneeded attention. Which will prevent me from using it without concerns (of being stolen or vandalised)...
Is it a Gates drive? Maybe, Veer - or even lesser known brand? Have you already experienced replacing the belt (by yourself or at a bike service)?
Is there substantial difference in simplicity (usage and/or maintenance) if compared to a singlespeed bike, for example?