I never answered before because i agreed with what they said. So if you were trying to get more people to say they like it, i bet more people aren't answering to the post because they agree with what those that answered response.
I have looked at PR, Kaplan, EK, and a few others. I have also asked around quite a bit; not just on this forum but other pre-meds at my school, and the general consensus was that EK was the best. I first bought kaplan's big book and looked over and read a lot of it and now I am reading EK. I like EK much better, but it's nice to have Kaplan's practice test to add to the collection. Well hope this helps. Good luck.