Paintless Dent Repair (PDR)

Apparently it is almost impossible to live with a dentless car. No matter how careful you will try to be with your car, it will still happen, for instance a neighbour pulling out of the parking lot may mistakenly hit you or crease your door, and just like that you have it.
so there is this dent removal technique I have been seeing guys use on youtube and it has really captured my interest, PDR. Looks like an inexpensive DIY stuff that can help you save a lot of cash that would have otherwise been spent of the auto body garage. I don’t know if our local garages apply this technique ama tu ni body filler and other crude methods?
So my question is, is it worth trying to learn the technique and be sorting myself out incase shit happens or are there local garages who do it well at reaaonable prices?

dUDE…Just get a Toilet Plunger and Pull out the dent