I've had less than a month. If it lasts, no problem. Technical rating, it's simple and it's not worse. Cote W7, the 3.61 TB are recognized without problems and without additional drivers. I was afraid that there is a concern but the worries can come in case you also want to install the system on. But as a simple external drive data, no problem.
Well it's been one year now and no problem. By cons I should point out that this disc is not constantly lit not see often.