I saw this cute little espresso maker in Cafe Coffee Day and was quite fascinated at its size and functionality. Sold on its features, I bought it. It does make a nice cup of coffee.
It has three compartments. You fill water in the bottom compartment, put in the coffee powder in the cup-shaped, filter compartment above it and screw on the top, which has a spike-shaped thingy with slits that protrudes into the upper compartment. Put this assembled onto a gas burner on low fire.
In about 2 minutes you hear a gurgling sound as the water boils below, and the steam/water rises through the coffee powder and oozes into the upper compartment. In about 2-3 minutes a cup of espresso is ready. The handle is heat-proof, so you can lift it off the fire easily (though you have to be careful not to knock it down as it is just about balanced on the stove top--better if you have a hot plate) and pour the espresso into your mug through the spout, nice as anything.
I add two ladles-full of milk and a little water and sugar to make my coffee. Haven't tried it black yet.