This add-on is really a steal for only $30. I will say it takes some getting used to as it is quite bulky and adds a good bit of weight to the controller, but if you initially force yourself to start playing with it, you won't regret it. The peripheral comes with a programmable OLED screen on the back of it so that you can see the button assignments if you flip the controller over and long-press the screen. Double-pressing the OLED screen allows you to choose between 3 customizable preset button configurations of the 2 back triggers. This device allows me to make much quicker reaction shots due to the easier finger placement when assigned to act as L2 and R2, although I do wish the button sensitivity was a little a little less stiff. All in all, with PS5 on the way im not sure if this would be the best investment option unless you plan on continuing to play on the PS4, but it is definitely worth your while if you choose to buy.