Bluetooth Does Anyone Actually Use it?

So my son decided to give me his over used iPhone. Took me a week or two to figure out how exactly it all works, but its pretty great. I gave up my old samsung flipper phone for it, but the headset i use while on the road does not work. In my search for a new headset my son mentioned bluetooth....so im here asking. Ive seen a few of you out there with these things in your ears...are they worth it? Do they work good? easy to use? I noticed they have speaker phones as well, i have been eyeing this Jabra Cruiser speakerphone, just wanted some advice before i bought something i know nearly nothing about! 

I only use the bluetooth capabilities of my phone to sync up with my car for accessing built in hands free awesomeness.

Same, fernie.

Bluetooth networks are some of the most easily hacked....of course, most people don't care about hacking a phone.....

I love the bluetooth in my car.

I bought an inexpensive Bluetooth and it serves its purpose. I like the audio (analog) cord I plug into my car and phone to speak over radio better. Check out that option too.