I don't know anything about them but I would be concerned that there is no address, no landline number and no full name of the person fronting this business. No prices on the horses either which I personally don't like. If you are thinking of buying from them do your homework thoroughly beforehand and make sure they are genuine people to buy from.
If it's any help I know of two good places to buy from, one is Stubley Hollow Farm and the other Sandalls Farm. Both have websites.
I went to try a horse there (a coloured mare) and then she called and said that she had sold her but her friend had an identical one which they bought over at the same time... so I went and tried that and it was supposed to be 16.2 but was 15.2... then the lady phoned about 2 weeks later and said that the mare had come back and did I want to try it..... I didn't!
Lady was very nice to talk to and offers a month's trial etc... I just disliked being messed around.