I liked the plot to this story and all the characters are lovely. What I didn't like at all was the lack of anything really "Irish" about it, except for the title and all the scones that were mentioned in the story.
Most of the time, when an author writes a story that takes place in another country, they use the occasional word/phrase or refer to actual places/people that relate to that country. The descriptions of Ireland in this story were so generalized, it could have been talking about any place. They visited several "towns", all about an hour drive from Dublin, and walked down "Main Street", visiting the local shops. So very vague, I felt no sense of place...and I've been to Ireland several times, but still couldn't really picture what the author was talking about. It felt more like she was describing some small mid-western or seaside town in the US.
Due to the lack of Irishness in this story, it could have been taking place anywhere, and probably should have taken place somewhere else. Seriously, who dreams of going to Ireland and meeting a rich software developer?
I just think if it had been done properly, it could have made a big difference in the story. Montana girl out of place in Ireland...it could have made it much more interesting. And more description of the country and it's culture definitely would have made it better.
Now, all that being said, I did enjoy the story. I liked the relationship between the hero/heroine very much, as well as the relationships between the other characters. it is a good story. It's just that if you're going to write a story that takes place in Ireland, then it should have a bit more Irishness to it.