This is a nice little puzzle game, with a great hint system and several endings; I found the finale exceptionally frustrating, however, as even after using the otherwise excellent built-in hint system, I simply didn't know what to do.
The 5 minute timer is a great gimmick that adds to the sense of urgency. Some of the puzzles are examples of 'game logic'; that fiddly, highly specialized language of IF puzzles. Luckily the hint system is quite good.
That didn't help me with the finale, however; I have no idea what verb to use, and even the verbs used in the hints don't get the job done. If you don't guess right, you end up fighting the clock as you try to guess the proper verb, even with the right items & the right idea.
It's short on character (we mostly know about our character through her anger at her ex boyfriend, who sounds like a real jerk), but that's pretty par for the course on a tiny puzzle game like this.