Windows Acrobat find feature reliable?

hey all,

I hope this question is alright. I usually have Mac questions, but now that I use a PC at work, I have different issues and this is the best place for computer questions in general that I know.

So anyway, I'm searching throught PDFs in Adobe Acrobat using the find feature - specifically the Find across multiple documents feature. I'm searching only text files - PDFs of the last several weeks of the New York Times Bestseller lists - but I want to know how reliable this feature is in Adobe Acrobat. Should I have any cause for worry using it (with the known exception of image based text, I'm sure)? I appreciate any help, thanks.

sps