no, not really a hassle, just need to know which accounts (must hav credit report for account #) and you can make a draft letter and just change a few things depending on each account. Took me about 25 minutes or so, to do it online, DH did it in about 1 hour when he did his by mail. Here is wesite that will answer alot of questions
http://www.ftc.gov/bcp/conline/pubs/credit/crdtdis.htm on how to dispute items