I REALLY resisted it because a) I dont like to jump on a bandwagon and b) Pd off that I didnt get it when I first looked at it and they were practically giving it away, the price has gone up so much since I first looked at it on kindle.
I am also a fan of the lazycatfish review on Amazon...pure brilliance.
I eventually gave in so many people seem to love it and I have to say I enjoyed the series. Whatever the press like to say, its not going to change your life, lets face it unless you have spent your life in a bubble surely you KNOW most of this sex stuff anyway?
I read all 3 books in just over a week toward the end I was skimming the sex bits as it was the story I liked, the writing is not brilliant, it is repetitive (how many times does she "think" a fragrance is possibly jasmine)
Think of 50 shades of grey as Mills and Boon with whipping and butt plugs and you probably get the picture! 
It does all get a bit twee in the 3rd book but, if you can suspend all logic and are looking for something to fill some time & enjoy a fictional bad boy turned good by love, its worth a whirl if you can get it v.cheaply!
Certainly not the worst thing I have ever read (and ive read some dreadful books since having the kindle) The worst was called the Soul Scarab by CJ Turner, I didnt even manage to finish that one, I even left a critical review for it as they I felt they were getting friends and family to leave glowing reviews and conning people into buying it.