I thought there were rumors of a faster version coming out. 75 write, 95 read isn't fast but for 1TB at $150, it would at least be a decent "built-in" drive for Photos or iTunes I think. I don't know if I'd use it for a Time Machine though. Best to have that really external, I think.Have you seen the Transend JetDrive? It fits flush with the case, nothing sticking out… a bit slow, unfortunately, but having around-the-clock backups is indeed a godsend, best Macbook accessory ever.