Is your dent a big one? I heard from my friend that this unit is practically worthless. He said that the dent would have to be a perfect circle, so you can pull out from the middle and have it back to normal. If the dent is an awkward size, then by pulling it out, you only pull some of the dent out, but the dent is still there. Also by pulling, you might make it worse.

There's this thing that some shops do called PDR (Paintless Dent Removal). I think this works great, especially on car dings. I recently had a door dent about the size of a dime removed. When it's fixed by a expert PDR person, then you might never find the dent. This is my 2nd time using this service and I've been happy with it.

The cost varies from the size of the dent. That one dent cost my 50 bucks. It was the cheapest I could find. Others are mobile and usually charges between 65-100 bucks. I'm in the So Cal area...so if you need referrals, let me know.