Does it work? Yes. Is it practical? It depends how patient you are and how large your files are.

From a pure efficiency perspective, reByte is very efficient when it comes to network usage.

Having said that...

If you'd like my candid opinion on the subject, I'd say that unless there's a reason that you can't actually get a high-speed (DSL, Cable, etc.) connection at your location, you'd be crazy not to.

Why? How much is yours or your employee’s time is worth? If you wait for 1 hour over a period of a month to move files around, you'll have paid for the connection AND saved yourself a tremendous amount of frustration at the same time.

The bottom line is don't waste your time...unless you have absolutely no other option and high-speed access isn't available where you are.