Nice car! I sometimes miss my DSG but I kinda lost confidence in it when mine started misbehaving. No doubt it's great for easy driving though. I like black too - my Golf mk4 was metallic black and looked the business when properly clean.
Economy-wise, I think you'll see it continue to improve for a long while yet. I'm getting about 65mpg tank average at the moment (after 25k miles). Some of that will be the aero/gearing tweaks of the Ecomotive and my driving style, but I reckon the 1.6CR is a very nice efficient little engine. I've been impressed with the smooth quietness of it.
I completely agree with your comments re: suspension too. My missus far prefers the handling of my treehugger to that of her A4 Avant, in fact - seems to go round corners better for one thing (despite mine having LRR tyres). Maybe it's not fair to compare an estate to a regular hatch, but the Audi feels lumbering and far too light on the steering: the Leon is better balanced.
And compared to my pre-FL FR, the ride quality of a non-sporty Leon is bliss!