Honestly not a *bad* romance, the main characters are very pleasant and the story being told is nice- but that's kinda it. It's a sweet Christmas time romance and if that's what you're looking for, this book is serviceable. I have two main concerns with this book: first off, the author can't seem to decide whether the main love interest's characters are long-term-friends-to-lovers or what's effectively a love-at-first-sight story, and, second off, the side characters, specifically the characters closes to Ben and Ianto specifically, are truly atrocious.
These characters are Aaron and Rhys respectively, the former being a self-proclaiming and proud asshole, which I have no problem with in it's goal to forming a specific dynamic, and he never takes it too far in the story, but he just doesn't feel real. No one is constantly calling themselves an asshole, playing it up, and subsequently never doing anything to change or better themselves; it felt like a Pokemon that was only able to say it's own name like- oh there's Aaron, oh what was his only character trait again? Oh right. And then the latter, while I understand wanting to represent a close sibling relationship, veers much to close to twincest and the codependency that both him and Ianto are apparently aware of is not the quirky thing the author seems to want to make it out to be; just genuinely uncomfortable interactions all around.
And as a final note, there are just so many instances of telling instead of showing, and I try to ignore it because generally, it is a boon of the first-person-pov format to being able to know what the characters is thinking and feeling, but I never felt surprised or tense reading this book. The main drawing premise of romance novels, at least in my opinion, is the "will they won't they" and this book does not for a second make you feel like they won't, even in its best attempts to. If you want something easy and have the patience of a saint, then I'd say go for it.