I did (chapter 7) due to about 80K in medical bills in an 8 month period when I had no health insurance. I made sure that I was not going to be getting another 10K in bills before I did file, one mistake many people make. If one does not fix the problems that cause the debt, bankruptcy is a waste of time. For myself, getting health insurance was the determining factor that I was indeed ready to file. I don't regret it; it actually helped my credit score in a short amt of time.
Depending on your situation, BAPCPA may or may not have much impact on your filing decision. For me, my financial situation was so dire that I was no where near being denied filing due to new regulations.
I also did it myself without an attorney. By filing pro se, I was able to have the filing fees waved as an indigent. Impossible to do with a lawyer, rationale is that if one has enough money to hire a lawyer, they can afford filing fees. It probably goes counter to all advice you will see elsewhere, but filing it was not a difficult process and I would encourage people to at least consider it. When I was talking to lawyers, I mentioned possibly filing myself, and they laughed at me and told me there was no way I would be able to do it myself. I took that as a challenge--It took some careful reading of the paperwork, but it was not hard at all. Plus, I saved over $1000. But, I wouldn't expect an attorney to tell me that I was able to do it myself and put themselves out of business.
As the above poster stated, each situation is different. What worked for me may not work for others, but I found it a relatively painless (effort-wise, the blow to self-esteem was a little tough) process.