Julia Quinn is one of my favorite Regency romantic-comedy authors. Her books might be a tad historically dubious, but they're so much frothy fun (with real emotions to ground the frothiness) that for once, I just can't make myself care about historical accuracy.
This newest one feels a bit thin (in terms of plot) as compared to some of her earlier books (my favorite of hers is probably What Happens in London), but it made me laugh out loud several times, the romance was filled with real tenderness and sweetness, and at one point midway through the book I suddenly realized that there was a huge grin on my face, and there had been for a long time without me realizing it - the book was just making me that happy. And that's what Julia Quinn's books (from the second Bridgerton novel onwards, almost without exception) do for me - they just make me really happy.
I finished Just Like Heaven last night, but this morning when I was feeling stressed, I picked it back up again and reread the last few chapters. They made me feel happy again. And I love books that do that.