I found the ending of the anime pretty much perfect already, but this is still a welcome expansion of the relationship of best tsundere couple. It also gives Makise the chance to get some agency and make the relationship fully hers, outside of alternative timelines and deja vus.
A tad tropey at various points and it had a little less punch than the series, but considering the series was pretty much a nuke, less than that still makes quite a bang.