I know of a similar agency, could be the same one (based in Monmouthshire?) and find them very good. When they approach me with potential placements I know that there IS a job there and not a "maybe" as is the case with some agencies. They also used to pay a higher rate and only worked with the better schools avoiding the more "challenging" ones. At one placement I was sent to the Cover Manager told that they were always happy with supply teachers sent to them by this agency (I hope they were including me in this statement ). Sound too good to be true, doesn't it? I fear it possibly was, this particular agency has ceased trading at the moment but I believe hoping to restart for the new school year. I hope so.