Maybelline Salon Expert covers really well. You can get away with only one coat of this stuff, but I went ahead and did two. It has a great shiny look when dry, and boy does it last! I type so much and tend to be hard on my nails, so I generally chip the heck out of polish within a day or two. I managed to make the Salon Expert lacquer last about 5 days, then I stretched it a few more by tossing another coat on top.
I was so impressed that I went and bought another bottle in a different shade. It is affordable, quality, easy to find, and has some great shades. What more can a person ask for?