Cottage and its environment are beautiful and comfortable. The hot tub is great after a day of walking in the Beacons; we sat in it during a nice rain one night. Lots of chirping birds and sheep next door if you enjoy a bit of baaing as well (we do). The owner, Lisa, is a wonderful landlady, generous with her time in communicating with needy overseas visitors and with her gift basket. We were also very grateful for the fully appointed laundry room by this point in our trip.
One note, not a flaw of the rental but perhaps useful to readers: The spiral staircase to the bedrooms is tight and steep. We did not even bother trying to take up our giant suitcases. We didn't mind this but some might, for various reasons. (I'm pretty sure this info appears in the property description as well.)
We travel in the UK regularly, have used self catering rentals in Wales, England, Isle of Man, Scotland, and Orkney Islands. This is by far the most expensive cottage we have rented. I thought I would comment on the cost since other travelers might wonder, as we did, if it is worth it. I would say yes, especially if you have several people in your party. With only the two of us it was, in all honesty, kind of dumb to spend so much on space we didn't use, but considering everything the property offers in such a prime location I don't think the pricing is unfair. It may be the most expensive booking we ever made but it's also one of the largest and best appointed.