Commuting distance recommendations

Hey everyone!

Been loving my new eMTB for weekend rides, but I'm seriously considering making it my primary commuter. My office is about 15 miles away, mostly paved bike paths but with a few decent hills thrown in. For those of you who commute regularly on your eBikes, what do you consider a comfortable or "ideal" one-way distance? I'm curious if 15 miles is a good sweet spot or if I should expect to push it further or maybe find it a bit much daily.

Cheers!