The only drawback: the Logitech (compared with the original version of Zaggmate) changed holder, in the da iPad is plugged in, does not hold very safe. If you type quickly with longer with 10 fingers, the iPad solves slowly and falls sometime around.
This is a considerable disadvantage, because the iPad back firm must put up with on a regular basis, you want to prevent the iPad falls on the table.
If Logitech eliminate this shortcoming, the keyboard / the Case is really great! Until then, "Liquid Tape" (liquid insulation) is a good solution