I hope the Easy Peesy Recipe works out for you, sb. I am actually yet to try it with just straight lemon. I always put fruit in it for flavor---so far. That being said, I also keep flavorings and extracts on hand. I have noticed that strawberries (for example) do not add a great deal of fruit flavor to the pee, so I have added some natural strawberry extract to those with awesome results (it's my wife's favorate). The triple berry I make comes out with very nice berry flavor and doesn't need anything extra. Some just need a little help. Don't be afraid to experiment! I have added raspberry flavoring to my blueberry skeeter pee with success, and am now making some citrus zest (thanks for the idea, joe!) for furture flavoring tests. I do have some lemon flavoring that I got in anticipation of making some straight lemon pee (for next summer), but have yet to start a batch without tossing in some fruit. I just can't help myself!
The others may be right, though. Tannin may be lacking. My current mod on the Easy Peesy Recipe is adding extra tannin (a full tsp or more for 5-6 gallons) and adding pectic enzyme (one tsp) in the primary (because I have had some pectin haze problems before). I think it's about prefected. The last two batches have beat all to date, and they were redo's of successful flavors.
A last note on flavoring the strawberry (or any other kind for that matter). I have used both artificial flavoring and natural extract to flavor my strawberry skeeter pee at back-sweetening time. The natural strawberry extract gave the wine a far superior fruit flavor (and a beautiful amber color---as opposed to the pink color from the red coloring in the artificial flavoring). FYI!