I've tried the traditional lemon lime way, a raspberry lemonade way (twice), a heavy red lemon wheat, and straight lemon shandy using the extract recipe.
Tips: 1: The sorachi ace/motueka combo is key.
2: you can sub the yeast out with a clean ale yeast, but the original recipe yeast makes a complex and tasty beer.
3: try the original first. Then experiment with variations.