I tried the first cup of cold-brewed coffee. It does taste smoother and less acidic. The aftertaste is more pleasant, too. I let it steep for 19 hours this time. Next time, I'll leave it for a bit less time and see what that tastes like. I think I did the right thing in making the first batch strong, though, as it's easier to dilute strong coffee than to do anything constructive with a too-weak brew.
Thumbs Up to cold-brewed coffee. I had better find some time to cold-brew some decaf, though, as I can only drink so much caffeine in a day before I live to regret my excesses.