I did Hack Reactor in 2013. My background prior to that included a year of college CS and a couple of years doing recreational coding challenges like Project Euler problems. I had been dreaming of a professionalizing my coding skills and getting a tech job, and Hack Reactor did that perfectly for me. I had several offers upon graduation and took one at a startup I was really passionate about. While there, I was able to work on and later lead a variety of projects, including a complete rewrite of our frontend and a large-scale database migration.

I'm now in the middle of my second job search after 3 great years there. I'm generally interviewing for "Senior Backend"-type roles that expect 3-5 years of experience. However, I have seen some prejudice against bootcamp graduates, and tend not to reveal that I went to one unless pressed. Otherwise, it's easy to be pigeonholed as unqualified to work on the backend. Interviews have gone well and I've made it to most of the onsites, with two offers already.

I don't keep up with most of my cohort but the ones I know are still engineers and generally seeing career success, though a few people have struggled. However, I think the market was much easier for bootcamp-level grads in 2013 than it is today. I don't recommend bootcamps as strongly anymore, especially for people with very little previous coding experience.