It is a total 'zen' feeling for me not to have to worry about when to shift, hitting the right gear, dropping my chain etc. etc.
I had front and rear brakes installed (some only have front brake or yikes... no brake at all!) It is safer for me and I'm not goint to blow out my knees trying to stop.
Pedaling all of the time is easy to get used to BUT remember, you are pedaling ALL of the time... over pot holes and bumps, around corners, while you are reaching for your water bottle... those are the times that will get you!