If your HR has front suspension, which some years did, then I'd be looking for something lighter. Otherwise IMO it's a fabulous commuter platform. Fender and rack mounts, unlimited tire options, rugged, not super attractive to bike thrives. I commuted on one for years and it was solid. I even did a century on it, super comfortably.

Having said that, a hardcore bike commuter needs two bikes. Sometimes one is down for maintenance, and it would be a crying shame to drive a car for lack of a bike.
So do both

Disc brakes are awful nice for all weather commuting. If the second bike is different, it gives you some variety.