This weekend I got to experience the Joseph Ambler Inn (stayed overnight and had dinner and breakfast) Prior to going, I looked on Chowhound for info and didn't see any, so I wanted to share with all of you my experience (which was great!)
The food was delicious (the best sea bass I have had in many, many years) and the property beautiful. I'm not sure why it has taken me so long to ever go there when I live so close! (It's in Montgomeryville, I live in Ambler!)
Anyway, I wrote up a review if you are interested in reading more about it. It was a great experience and they are running some nice specials right now (like $100 for a room including a nice full breakfast)
I hope this helps!