I just bought a 2015 Prius 3 due to a new job. I drive 85 miles round trip and I am impressed with the Prius. After reading driving tips I manage 53.5mpg. Toyota has been loyal and reliable to me. I have a 2009 Venda awd and a 2000 Tacoma with 215,000 miles with just routine maintenance. The only thing I will change in the Prius is led lighting and adding Hid kit.
Welcome Sir, Your MPG will increase over time no doubt. As you have a fairly lengthy commute....although you seem to be doing great as is.... Check tire pressure (pump em up), pulse n glide, 55mph on cc.... = $$$ in the bank.
welcome to priuschat. this is a really helpful forum. just search anything you have questions about and it most likely has been discussed.