Internal hubs are amazing for the kind of bike that's always outside and gets maintenance beyond occasional tire pumping about as often as summer olympics are opened. Unfortunately SRAM stopped production of the T3 years ago, it was the perfect drive for a low maintenance, low value practical utility bike, providing the easy 80% of everything you want from bicycle gears for short distance commuting. Derailleur systems receiving a similar lack of maintenance are what turns people into short distance drivers.