Prob closer to 3.5. 
 I'm very happy that this time travel book did not give me visions of unspeakable paradoxes, nor did it make my head hurt. This isn't a usualy occurence for me. 
 As far as Ruby Red, the pacing was fairly quick, although it still seemed to take a long time to get anywhere. For the most part I liked the side characters, especially Lucy and Paul, and I hope they get fleshed out more. I thought that the main character, Gwyneth, was pretty realistic (almost annoyingly so), but her reactions felt natural. It was an easy book to get into and finish. 
 However, I felt like it ended just as it was starting to get good. I realize it's a trilogy, but I think I wanted a bit more oomph in the action or the conspiracies. The romance angle felt off to me, to the point where I almost hope in the next book we find out it was a lie. Gwyneth did annoy me a bit in places, but I think that is more the adult in me talking, so younger readers will likely not have the same issue. I also thought the male lead was too 1-dimensional. I hope he gets rounded out a lot more in the next book. 
 And when I get down to it, yes, I will read the next one. Although I'm really hoping that Lucy and Paul play a bigger role in book 2.