3.8/5 Reduced 1 star because the Bookshelf View (of which the UI could be enhanced) and TTS function is not available with the app. One has to install separate plugins for them. Same in the case of PDF Reader you have to install plugin. Hence  leading to the increase in the size of the app on the whole. However  it could be the best reader out there in PlayStore ........ Just by fixing these shortcomings. :)
May 11 2016