The stories are pretty much a trial run for Campbell's later and better known ALEC stories (currently available digitally as ALEC: THE YEARS HAVE PANTS for $10 from Top Shelf, and which might have been my second purchase on the Ipad if I didn't already have the print version). A bit rougher around the edges in both the art and dialogue, though getting polished in both respects very quickly in just the year between Chapter 1 (March 1978) and Chapter 8 (February 1979), but you can see the sensibility that would later be employed to great effect in the next few decades of Campbell's work.
It's well worth picking up if you don't have the previous print collection, both as an interesting glimpse into the emergence of what we now know is a major talent, and frequently as an entertaining read on its own merits.
In addition to the full-page mode, there's also a "panel-mode" which zooms in to individual parts of the screen and pans across the page for each panel change and fades in and out of black for the page transitions. I tried to read a few parts of the book that way, but it really didn't work for me, especially when the zoom level changes so the size of the lettering suddenly shifts with no good reason. My print training kept me wondering why the characters were suddenly yelling or whispering for no good reason. And that's with Campbell keeping to a fairly regular grid for the most part, I'd imagine it's much worse with artists who use more eclectic layouts.
One of the big advantages of digital is the ability to include supplementary material at minimal extra cost, which this book does to an almost absurd degree, which makes this a worthwhile purchase even if you already have the print edition. As noted, the extras section more than doubles the size of the book.
So, overall I'd say a promising start to a publishing imprint, and a worthwhile book to bring back into wide availability (especially if/when they release it for devices other than the Ipad).