If you have a Sram Force (or Red) D1 crankset, this is an accessory to consider, because for the price you get an accurate, reliable power sensor, with cycling dynamics including D/G balance, discreet because it's perfectly integrated into the crankset, easy to fit (6 screws), as practical as a battery system because it's easy to take a 2032 battery with you and it's very easy to change. The main drawback is that when you change bikes or if you have several bikes, the system is proprietary, so you can't keep the sensor. Now, it's also a plus when it comes to reselling your bike.
The assembly is super easy thanks to the video linked on the coat page. Coupling with Garmin 830 has worked right away, the part works smoothly since then. I had previously the Garmin Vector 3 pedals and notice bzgl. readings and function no difference. Battery change also extremely easy and standard battery (unlike the Garmin Vector pedals ;-))
The power meter is unrivaled in price and performance for a two-sided measurement. For the assembly, medium assembly skills and a torque wrench are needed. The assembly time has taken about 30 minutes with coupling to the end device