This form of Johnnie Walker is great if you don't mind drinking your scotch with Ginger ale. They go nice together and it is convenient if you need to take a drink somewhere like a BBQ. However I don't buy these when I am at home or having guests over. I find it cheaper to buy a bottle of red label and mix the ginger ale in. It is just personal preference. Would be better if it was cheaper.
an alternative to cola with your scotch. Obviously being Johnnie Walker, the scotch is a nice, pleasant flavour
Some pubs and bottle shops do not stock Johnnie Walker and Dry. Can be expensive. It is cheaper to mix your own.