Great report Tim and for me far more fun than the upper T. This river provides a real natural river feel with 4 distinct grade 3 technical rapids and loads of challenging features. A short run that could be run 3 or 4 times in a day if you wanted to perfect lines and improve skills with each run.
Personally I thought it was at a good level but with no gauge on the river, for future reference, the Banwy gauge at Llanerfyll was on 1.9 in the morning and 1.83 when we got started.