Really great z interpreter!!! Easily the cleanest and most responsive I've seen  the smart interface takes a little of the tedium out of the command line only interface. Love it!! I only have one issue: When I use my wireless Logitech 920 keyboard over bluetooth  for some reason every time I hit enter  it issues 2 enter commands. As a result  the engine first interprets my command  and then an empty green bubble appears  to which the interpreter responds  """"""""""""""""I beg your pardon?"""""""""""""""" If that little fix could be made  it would be wonderful! Great product!!""