I love the taste of caramel malt. I'll use a pound or two depending on the style, but I don't use much caramel in Pale Ales or IPAs.
I have an 8% Weizenbock in bottles now. It has 8oz of Caraveine and 12oz of Crystal 120. Caramel haters would turn their nose up to the recipe, but I'm pleased with the result and that's all that really matters.
I have a batch fermenting right now with this grain bill:
8lbs of Pilsen LME
8.0 oz Biscuit Malt (23.0 SRM)
8.0 oz Caramel Vienne 20L
8.0 oz Honey Malt (25.0 SRM)
4.0oz Rolled Oats
It's my first time using this combination. The beer is intended to finish malty and "sweet" not hoppy and bone dry. I haven't tasted it yet, but it smells good.