I have stayed there for a few weeks a couple of years ago. It was a fabulous location, wonderful at night when the gates were closed and the visitors gone. There was a lovely atmosphere and the conversation at breakfast was fun! The refurbishment will be a boon. This would certainly meet the OP's request for "good value".

I was working in the area for about six months and tried a few places for variety. My favourite was Howards House, and I have returned a few times to stay there, and loved it on each stay. Food is fabulous. Worth every penny, but my expenses might not be the OP's.