For an introductory price of "free", this app has been nothing short of amazing, with one exception. Creating folders/comic boxes for a series is easy and straightforward. I highly enjoy the option for the comic to fill the width of the screen (whether in portrait or landscape). I absolutely love that by touching the bottom of the screen, you can have the comic page automatically scroll down by about 1/3 of the page ( I can read an issue using only taps on the screen, no scrolling required), which works for me 80% of the time.
The only negative is that it seems you have to manually enter a bookmark to save your place within a comic; an automatic page save would be one way around this.
Overall, a great app!