There are issues.
First, this is not the first in the series, it's first in a spin-off series that begins with the 'Amish Brides' series and spins off into the 'Amish Spinster Club' series, which spins off into THIS series. So expect to be subjected to a LOT of people who have obvious backstories that you don't know, because you're coming into the THIRD spin-off series. Which is annoying.
Second, Caroline/Cora wasn't Amish, she was living as a Mennonite for almost the entire book... so no white kapp, no plain clothes (her dresses had flower prints). The photo on the front has severe issues.
Third, X-mess was only in the last chapter/epilogue - MOST of it takes place in October/November. It's NOT a X-mess themed book.
Fourth, there's no 'Amish Christmas Promise', either. So... misnomer.
Fifth, nowhere in Scripture does it say Jee-zus was born in a stable. N.O.W.H.E.R.E. And if the inn was so crowded that there was no room (due to people being 1) required to return to their hometown for the census, and 2) it being Sukkot, which is a pilgrimage feast), that means the stable was packed with travel animals, too. There would've been no room in the stable. They did procure a manger, but scripturally speaking, the likelihood was that they were sheltered in a sukkah, *NOT* a stable, based on logic, precedence, timing, and more.
Sixth, NO TRAILER - not even the 42' travel elite trailers - have dual wheels in the front. It doesn't work that way with a drive shaft. Additionally, the "teardrop-shaped" campers are too small to stand up in, let alone have a kitchen, washer/dryer, fold down bunks, and be the 'size of three horse stalls'. NO. If you're talking about a large Airstream (which is rounded, but not tear-shaped), call it an Airstream - it says it RIGHT ON THE SIDE. But please, PLEASE, PLEASE do your research.
Having said (all of that)... this is a very enjoyable story. The kids are charming, the hero is amazing, the story has flow, the 'threat' is actually believable, the whole thing worked for me, as a story. It reminded me a tiny bit of that old movie, "Sunday Afternoon Dinner for a Soldier" - where the children make up words, and live with their much older sister in their derelict 'Grandfeather's' shantyboat. Not the same, but there's the same cuteness and 'making due'-ness about it.
I haven't had good luck with 'Love, Inspireds', lately - most of them have been pure garbage. But this one was definitely a keeper, and made me breathe a sigh of relief. It was worthwhile and enjoyable, in spite of its issues.
Definitely a keeper, and I'll head into the series, further.