N.V. Miguel Pons Penedès Cava Brut Nature (Spain, Catalunya, Penedès)

This is aged 21 months on its lees, gets zero-dosage, and the price is right (~$15). It's bright, it's clean, it's got lemon zest and spring water flavors. The bad news is that the finish seems slightly clipped and the mid-palate is a bit hollow. Great quaffer for parties though. Not mind-blowing, but good.