I had terrible experience with them. They exploit your interest in a property and make sure that you either compete with yourself in making higher offers by making you believe that there are other imaginary buyers who are keen to buy the same property or they will sell it to someone else who shows lesser interest and paying the same amount as you. Instead of facilitating your purchase, they use your offer as a tool for other people to make higher offers and pick and choose between people at their whim ignoring all your efforts for a couple of more quids. Very unprofessional and unethical approach to conduct a business.