Not to toot my own horn, but I totally called the ending within the first five minutes, at the first time the lead guy said the word, "Paris". Might be a little fun to go back and look for Year 2000 anachronisms. For example, they specifically made sure the sleazy massage guy had a pre-iPhone cell.
Another fun callback, when Olivia drops the photograph of her in the office, it's a photograph from the amusement park from FD3 with a "RIDE THE ROLLERCOASTER" logo at the bottom.
Way better than FD4. About on par with FD3. The lasik surgery bit was the best cringe-factor set piece for me.