It's in line with other high-end power meters. You can change the chainrings without affecting the calibration. SRM claims +/-1.5% accuracy, developed using a 144-point calibration protocol against a known mass measured to the exact gram. The SRM, unfortunately, doesn't support Bluetooth. I never had any issues connecting to the power meter – it never lost connection during any ride or weather.
I tested it with a Wahoo and Garmin computer with no issues at all. You can opt for the company's own PC8 head unit to get the data on a display on your handlebar or use any ANT+ compatible computer. That's lighter than the Shimano power meter (695g), Stages LR (709g), Rotor 2InPower DM (798g) and Verve Infocrank (831g). On the scales with all hardware, Shimano Dura-Ace 53/39t chainrings and a 30mm spindle, it weighs 663g. You can still buy an SRM power meter installed on another company's crankset if you prefer, but the Origin is lighter than any of those combinations.
Chainrings aside, everything is new and unique to SRM. In a market where more brands are offering their own power meters, SRM responded by creating its own crankset. The German company's business used to revolve around taking another manufacturer's crankset and adding its power meter spider to the mix. Cons: Expensive, only broadcasts over ANT+.