I really can't speak highly enough about Aonghus & the service he provides. From the first call through to completion he keeps you fully informed of the possible problems, causes, solutions, & the cost implications. Him coming to your home/office is fantastic too as many companies, offering the same services, want you to bring the machine to them. he is also really quick. After establishing the likely problem on the the phone my iMac went from completely broken down to working better than before within 24 hours. The cost was great (cheaper than other companies who wanted me to take the Mac to them). On top of all this Aoghus is a really nice guy!! HIGHLY recommended..........