I have a 250,500,this 1000 and the 1500 gb models.All have been totally solid.RELIABLE.Fast.I cannot fault any of them at all.They have outlived a Toshiba ext drive (lasted 13 months! of very intermittent use).I cant really find anything not to like about them,except that the 250 had a switch on the back,useful for offing when not being used..The others dont, but they do power down when the PC is switched off.But, this is so nit picking really. Thanks Buffollo. Keep on roaming the planes.