Andy,
I think Finegan is definitely worth reading. Not everyone loves his prose style (it can come across as mannered), but I find him charming. I took "Blasted Heath" to Fife with me last summer and enjoyed reading his reviews before and after my rounds. His books are good armchair reading and are close-to-functional as guidebooks, even. And yes, he definitely covers some of the Silloth-on-Solways and Narin & Portnoos of the world. He'll wax poetic when the mood strikes him, but he's not just a cheerleader--his passage on Carnoustie is well-worth reading (even though I disagree with him there). It's also worth pointing out, for what it's worth, that he's quite an accomplished golfer. I believe he is several times club champion at Philadelphia, and was senior club champion at Pine Valley.