In reply to Dell:
Aye, definitely better in the stove - noticed they've even started mentioning its use in camping stoves in their blurb. I really noticed the difference in my lawn mower too incidentally.
Not cheap, but coleman fuel is about £7 a liter (from a quick google - I'm sure you might get it cheaper if you hunted around) and aspen £4 a liter. Definitely cheaper, but not as cheap as stuff from the pump by a long way.
A while since I bought any so didn't have a cost in my head other than cheaper than coleman!
Guess it depends on how much you use it - 3-4 times more expensive than fuel from a pump, so cost will ramp up if you burn loads, but still a good bit cheaper than coleman. Prob not nearly as easy to get abroad either.
Cheers,
Stu