Image Comics' 25th Anniversary, Comixology Unlimited is offering a few complete series to read. I chose this one Alex + Ada, because I loved some of Jonathan Luna's past works, especially his collaborations with his brother Joshua The Sword and Ultra. Here, he collaborates with writer Sarah Vaughn on a series that ran for 15 issues, collected into three trade paperbacks that are all available to read on CU.
The story focuses on Alex, a lonely guy in his 20s who is still struggling with the fallout from his failed engagement. One year for his birthday, his grandmother, who is a free-wheeling, liberated, and funny woman, buys him a robot companion to get him out of his funk. He names her Ada, and she will obey any and all of his wishes.
Like I noted above, artist Jonathan Luna has drawn a number of other comic book series. Writer Sarah Vaughn has worked on the webcomic Sparkshooter and the series Deadman: Dark Mansion of Forbidden Love for DC Comics. She speaks a lot more about her career in this interview. Both creators are set to collaborate on the forthcoming series Eternal Empire, and they speak about their work on Alex + Ada in this interview.
All of the reviews I have read about this book have praised the story, and some have been more critical of the artwork. Pharaoh Miles commented that the story "more than invades the senses, it lives with the reader." Brandon Perdue wrote, "For the classic sci-fi fan, those who seek thoughtful futurism over whiz-bang action, Alex + Ada is easy to recommend."
Alex + Ada was published by Image Comics, and they have previews and much more info about it here. There are some adult situations in the book, but I think it is appropriate for older adolescents.