Hi Shane
Husband commutes to CBD, Monday to Friday, he drives, he does prefer driving to taking the train, but that is also an option, train ends at Frankston, so you would then need to make your way back to Mornington, however there are frequent buses from the station. Also if you get to Franston train station early enough you can park for free.
He doesnt mind the commute 1 hr - 1 hr 15min as the peninsula is a beautiful place to live.
Heather