I've been there a couple of times during construction with Tom M, and wrote it up in the mag a couple of issues ago (and a short update in the issue that publishes this week)
There are some really nice holes, especially around the edge of the property. I like the fifth and sixth, which both use the river well, and the fifteenth could be a really good par five. Soil is typically heavy Oxfordshire clay, and the constraints of the historic parkland restoration created the need for the long, flat, straight eighteenth.
They are in soft opening as of last week. I doubt I shall get back with clubs before the end of the year, but I'm looking forward to having a hit there.
Adam