I must say, Juliet Immortal is an improvement from Stacey Jay's previous novel, The Locket. There are still similar themes, such as time travel and love triangles, etc, but this time, it's done a lot better. 
 Juliet Immortal is basically a retelling of Shakespeare's Romeo & Juliet, but with more nefarious and twisted undertones. Juliet was actually killed by Romeo in exchange for immortality; the play got it all wrong. 
 You can get all you need to know from the book's synopsis but I really liked the different twists and turns in the book towards the end. It wasn't shocking shocking, but it did keep the book interesting. Juliet/Ariel is also quite an excellent character. She's headstrong, kind, passionate but very stubborn, and at times, quite dense. There were stand-out scenes such as a confrontation between Ariel and her mother which was written really well, so props to that. Stacey Jay can obviously write but there were some things that I didn't quite like. 
 For example, there are just some things in the novel that are plainly obvious. I really don't see how Juliet, who has been through this "reincarnation" business for around 7 centuries, could have NOT seen the sights. (view spoiler)[It doesn't take a genius to figure out that Gemma and Ben are not the couple she is supposed to protect. I mean, it's so obvious that you have to be blind not to see it. (hide spoiler)] I was quite disturbed with the fact that Ben and Juliet/Ariel fell in love in 3 days. Yes, THREE DAYS. It was explicitly spelled out in the book too. THREE DAYS is just scary. 
 Still, Juliet Immortal was definitely an interesting retelling of the tragic love story. The ending wasn't too bad either, and I felt that it was better written than the one in The Locket. Looking forward to Romeo Redeemed too, which we were sort of given a preview too as well. :) 
 3.5 stars for this, but I'm bumping it up to 4 because of the beautiful cover.