2.5 - It was a really sweet story, and for a quick lunch break read, I would still recommend it (even though I haven't rated it very highly).
The concept was good, but the execution just wasn't quite there for me. In less than 30 pages, the super vague "something I must do" reference was said enough times to get annoying - if you're not going to tease new information, don't keep repeating it; in a super short read like this, repetitions like that are just that - repetitious - and completely unnecessary. There were a few other minor grievances that added up for me over such a short page count, but the aforementioned was the one that really brought it down for me.