You are right, ClavusElite, it gives owners 'advantage'. There are two ways to use the advantage. You can use it as an advantage for your team and to make tactics with it. It gives faster attacks when you can be more useful with it. The Medic has his übercharge ready faster, and so when the team gets in peril because there is not much time left, there is more chance the Medic can save the day with it's saved übercharge. You can also use it as an advantage for yourself. Alright, you are a Medic and you go to the battlefield with your homie Heavy. Uh-Oh! Sentry ahead! Okay, all we have to do is stand still here while I heal you, Heavy. Maybe you can bunny-hop around a bit to make it look less like camping. Oh, Soldier, you're on fire and have only one second left to live unless I heal you? Oh sorry, my übercharge is ready, gotta go now. *Not much later* Nice, Heavy, Sentry is almost destroyed. Let's go back and hide behind that wall while I stand still and talk about the weather, until I'm automatically charged. Meanwhile, the Dead Ringer Spy decides to run straight to the enemy in plain sight. "It doesn't matter if they kill me," he says. Sadly, an Engineer noticed that he faked his death and killed him again. He wants to walk away but hears that he is still there and kills him again. 4 seconds later he notices that he is still not dead. Kill! "He must be dead now", says the Engineer. Cha-Pow! Ambassador'd! Don't fuck with the Dead Ringer Spy! -- I can see a 'tl;dr' coming so basically this just illustrates that you can use these shop items good and you can use them bad and everyone uses them bad.