I have read the book and will have to agree with the critics on this one. Lt Colonel Corso seems like a very nice man, but his book is co-written by someone who may have taken too many liberties to what was said to him. Many of the inventions that LtC Corso takes credit for have been invented by other people. There is also his statement that he walked into an unguarded tent and saw alien bodies. Now such a place would of been quite heavily guarded, but this was not. There is also no bibliography to cite what is stated in the book, a big no-no for those who want to be credible.
I also have problems with it as he states he was in charge of Research and Development, which would of been a job of a higher ranking flag officer or senior colonel at the least.
Personally, I was upset at the lack of any bibliography, as I use that section to look up more names and books on the subject. Still, it is a good read, just not very credible.