Honestly I kept thinking I was reading Chaol's story not Aspen's. Talk about a similar plot line between two different series. There is quite a similarity between the Throne of Glass series and The Selection series with the third wheel of the love triangle being a part of the King's Guard. 
 The Guard was a fine addition to The Selection series. The entire series is definitely a guilty pleasure because I don't think the plot is phenomenal or anything new but for some reason I cannot stop reading. It has me hooked and I must read everything Kiera Cass puts out in this post-apocalyptic world.