Welcome
@J90LNE
Some basic questions first might help; how far are you planning to commute? Also, what type of terrain; i.e. road, paths, off-road?
Commuting bikes are often bought on a budget. Mine's a home-built Wilier Montegrappa for about £300. Why? Because you're using them in all sorts of conditions and there's likely to be more risks around busy roads and security.
In the winter I can be found riding all sorts of stuff; a £20 Raleigh Pioneer was the most common over the winter just gone simply because we've had a cold, wet winter and I wasn't going to use anything decent.
Your suggestions are both at the top end of the typical price range. Of the two I'd go for the Cube. Or rather I wouldn't; I'd use a much cheaper bike for commuting and save the best bike for weekends / other rides.