Tom and Liz's initial meeting and mutual attraction before everything went to hell was a cute and entertaining start that had me hooked and it set the scene for why Tom was a bit over the top as her PhD assessor.
A lot was made of how horrible Tom was to Liz during her PhD but we aren't given any specifics so it was difficult to get overly annoyed about it on her behalf. However, it went on for four years, making me wonder how she was still attracted to the man after that.
Their interactions from when they reconnect in the bar where she works to the inevitable HEA are filled with funny quips and one-liners. There were laugh-out-loud moments all the way through this book but also a few charming scenes.
Tom lacks good judgement when it comes to manipulating Liz's life so they have to spend more time living together but the story is so cute and funny it's easy to gloss over that. When the time came, the pair made an adorable couple. The side characters who were keenly watching their progress from enemies to lovers were also a likeable, funny and relatable bunch.
Another thing I really loved about Tom and Liz was that they didn't want to get married or have children and they didn't change their minds or have a surprise pregnancy at the last moment. This was refreshing to read and I hope to see more couples like this in mainstream romance. The unbalanced equation is a light-hearted, very funny and low-angst romantic comedy that will lift your spirits.