Heartbeat sensor, Bullshit or Good shit?

Well, Since it has been released, ive seen few people using it.

THIS IS A DEBATE THREAD, PLS KEEP ON TOPIC

Pros:
Find people (BUYABLE WALLHAX?)
Light
Reusable
EXCUSE FOR WALLHACKING :P

Cons:
Cant shoot peoples
Wont give people heart attacks
Rechargeable batteries
People may move when switch weapons.

Cons: A wallhacker may pop up and shoot you right when you take it out

I like the hb sensor, i cannot use any hack since yesterday's patch, so I deceided to start using hb sensor...
and its awesome!! when you active it, you can see in the radar where is the enemy, then you change to your weapon and run in that direction then shot that noob XD

I really liked it, but the con is that when somebody suddenly appears in front of your and you didnt notice him, its hard to change weapon and shot him quickly, so when it happnes, most of the times your fate is to die -_-"

any way, i consider it a nice tool ^^