All the features are by themselves good, but you put them all together to make it Great.
The depth gauge is in two inch increments. Pay close enough attention and you will see how accurate it is. I don't carry a ruler, but use my digger as one. If the depth indicated 2 inches solidly, it will most likely be 1 to 2 inches deep. If it jumps between 2 and 4 inches look for the target from 3 to 4 inches, etc.
When scanning the ground you hit a target look at all the features, Tone, VDI and Indicator. Especially while learning. If it gives a high tone, a VDI that says 86/87(a Quarter) but the indictor jumps around it is most likely junk, a bottle cap or aluminum piece. A nickel is a mid-tone 51/52 and a pulltab is close. So listen to the tone. A pulltab may have a VDI and Indicate as a Nickel, but will not be as loud. A nickel will be much louder. It has much more mass that a pulltab.
Your VDI numbers may vary from mine, depending on soil. My numbers vary by a digit depending on the site I am hunting. BUT, they are consistent, the indicator sticks, and the tone is the same.
Saltwater beach hunting is the same except the numbers can jump 2 sometimes 3 numbers, but always remain within range and sound the same for coins and silver rings.