The primary selling point is speed. By optimizing their routing paths and utilizing high-performance Content Delivery Networks (CDNs), .getxfer minimizes latency. For users in regions with slower internet infrastructure, this optimization can mean the difference between a successful transfer and a timed-out connection.
Why not just do a get followed by a set ? Because in multithreaded or distributed environments, the microsecond between a get and a set is a vulnerability. Consider a queue: .getxfer
public: AtomicTransfer(T initial, T empty) : value(initial), empty_state(empty) {} The primary selling point is speed
For a deeper look into how these files behave and how users handle them, the most relevant community-driven "article" is the Getxfer files discussion on Reddit (r/MEGA) T empty) : value(initial)