Having faulty RAM, I was told by CCL 'Kingston is some of the most reliable RAM out there'. I purchased the above which was the second cheapest. RAM is easy to fit and I am no technician. It worked first time. I've had no problems. I understand it is guaranteed for life. I expect to have to update my computer long before the RAM fails. I expect DDR3 will be out of date when I get round to buying more RAM. For me RAM works or it does not! The RAM it replaced lasted about 8 years. So too early to say how this product compares. Yes, if needed, I would buy it again. It works the same as my other RAM no better no worse. Thus 3* in the middle.