Only you can decide on that
Personally I wouldn't want to give it up. Had a crown fall off on my recent holiday. Selecting home screen and saying "OK Google, find a local dentist" got me an easy start in what was pretty stressful situation.
My daughter wanted some medicine from the chemist, it showed us where the nearest was and how long it would take to walk there.
If I am lost, Google Maps says where I am.
My car stereo plays music from the phone over bluetooth.
So nothing that I couldn't have done 20 years ago by going and asking someone, popping into a shop and buying a map, or having a stack of CDs in the car, but overall I like it.
I would say don't sign up for Google Now though. It works for me, but I get the impression you would find the way it starts logging everything you do abhorrent! It is opt-in though.
My son has a Moto-E which is £80 on a paygo deal, I can certainly recommend that. Frankly it has most of the usability of my HTC One X that cost a fortune a couple of years ago. Some of the cheap phones are horrid, do try before you buy.