Had my wedding in San Miguel and used Casa Cordelli as our "homebase" where family and many in the wedding party stayed. Susan and Chuck are wonderful people and went above and beyond to help us the whole week we were there. I would think that they needed a vacation from hosting our group, but these are people who are built for this type of life and I'm sure they were ready for the next guests. Having 85 friends and family come to San Miguel brought a certain level of stress (to me at least) to our time there, but Susan and Chuck alleviated so much and were appreciated by everyone who came.
Casa Cordelli itself sits atop a hill overlooking the town, I'm sure you can see the view from the pictures, its just great. At first I was concerned that it might have been a little ways away from the center of town, but it's just a short (and very scenic) walk, and taxis come by all the time if you just want to pay (like less than $3 each way) so its just as in the center as you need to be.
Casa Schuck just down the street is an amazing property as well, and I'd recommend looking into that as well.
If you're planning an event or wedding I'd recommend going through them as well.
