I cannot recommend them highly enough!!! If its Sam from Doncaster area I got my mare from her and love her to pieces. Sam was upfront about everything and she really is exactly what she said the horse would be!
Have a look at my blog to look at the mare I bought and you can see i got her as a 4yr old SJer and she's done a hell of a lot since! Sam was definately more bothered that my mare went to a good home and I still keep in contact.
Sam competes and so does her sister and they are superb SJers! Very very good riders that will ride everything and even compete what they sell. I see them around the circuit and have some smashing horses!