I originally started with a single power pedal due to price, and the info it provided was nice. However, after saving a bit, I added the 2nd pedal and the power performance information presented, was fantastic. The best cycling info and feedback is with both pedals. I really love them and often others in my club enjoy looking at the info after our rides.
Synced up immediately and works great. Prefer a pedal power meter as I frequently switch among road, gravel and trainer bikes. Connections are consistent and reliable as is the data collection. Minor downside is battery life, with daily use lasts two to three months. Use a Garmin Edge 530, also works okay with Garmin Edge 500.