No , it is complete. No sugar to add. It comes with a hopped LME and a normal LME.
I'm sure it is a no boil kit so it's just heat some water, add the wort. add to the fermenter with cold water, add the yeast wait 1 week in primary and 2 weeks in secondary. Bottle with sugar to prime and wait 3 weeks.
The waiting is the hardest part and the brewing takes around 30 minutes.
I guess my advice is you can't make good extract kits without spending around £14.
If you want cheap beer then you're better getting the cans from Asda for 28p. But I guess that's not what you want.
The other thing I meant to mention is that when you said you wanted to do the Edwort's apple thing but it was goin to cost £30. Why not do one gallon to try it? I did.
Asda apple juice 5@58p plus 1k of sugar@75p.
Ferment in a demijohn or a 3L water bottle and it's ready in a short time.
Be careful though....it's rocket fuel.