A couple of errors I spotted to help your inner editor out:

to a more something more desirable
his the tests he conducts

I had the same progression, seeing Blade Runner first then reading DADoES. It's probably one of my favorite sci-fi books ever, and it's a great introduction to PKD's work, for the uninitiated. I really like the moral dilemma that it posed and the mystery surrounding Deckard's own nature. I rewatched the film a month ago because I wanted to refresh myself for when I see the sequel (which I failed to see) and I was pleasantly surprised that it has aged well, comparing it to more recent sci-fi fare. Just like the book, it set a pretty high bar that most contemporary stories in the genre fails to surpass.