Ask HN: Have You Had Success with Programming Boot Camps?

Currently I'm about a year out of work in an industry and field I have no intention of returning to. I originally graduated with an civil engineering degree.

I started looking into programming boot camps as a way to jump start into another job market with out going back to school for 2-3 years.

Can anyone shed light about their experience and or usefulness?

Any feedback would be greatly appreciated.