Excellent product. Many hesitations before ordering, but eventually convinced by the quality of the product once in hand: Very little noisy, between 18 and 21 MB write-USB2 (USB3 not tested). Sleek design, no apparent screws. Heater a little but nothing abnormal. The external power supply is a small AC adapter (I expected more of a brick ^^). Note that the disc is a 7200 rev / min and can be formatted in exFAT (2 TB = actually 1.8 TB).
To the question of life, I can say nothing but the first hours of transfer happened smoothly.