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I do have a cafetiere but generally don't have the time to make coffee that way. But if I do then I use Illy coffee which is the nicest coffee I've ever tried.
Thanks for the suggestions, I'll keep an eye out for Intenso versions and yes, the original Nescafe is pretty nice but I've not seen one called extraforte.
I've tried Lavazza before and enjoyed it, so maybe I'll try it again.
I thought maybe there were some premium brands out there that I've never heard of, but all of the mentions here are pretty much the staple, so perhaps they're the best in offer in the instant coffee world.