It is easy to use, fast loading pages with no lag or errors while reading my plans. I like that it has several different font sizes so you dont have read every line of text which would be impossible if all lines had their own size! This software does not open pdfs very well when they are large (epecially for people who work online). If this can help anyone out there then its worth trying because nothing else opens them as quickly without causing issues such as lagging etc. For those having trouble opening multiple PDF files at once from within an email attachment - try using project reader instead - faster than anything i've tried before!!