I can't comment how long these guns will last as we only got them yesterday but so far they have been a big hit. Firstly they are pretty big, much bigger than I expected which makes them quite satifying to play with and hard to lose. They take 4 AA batteries each which aren't included so make sure you are ready. Once the batteries are in they are good to go. They make good space type shooting noises, quite loud but not ridiculous. Each has 4 lights on the back of the gun, when your gun is hit, first a light flashes then with the next hit it steadies so after 8 hits all the lights are lit up and your game is over. The gun makes a noise to illustrate the fact that you are dead. You can then press the reset button and start again. The infrared seems to work pretty well and it's good fun running about hiding from the other gunman, reminds me of laser quest from my younger days. Quite expensive but if the price drops a little then I would recommend for a Ben 10 fan.