Until now, I still having difficult time to have subscription again with both.
SCDB: very nice logo on Garmin, but not in TomTom. SCDB don't have mobile camera alert for specific North America. That's very disappointed. You need to download very big free file for mobile camera, and save very big file under folder ALL.
Again, SCDB only for FIXED camera, and not accurate at all. It shows you warnings at the speed panel sign, not the real camera installation. I did send request many times to them to fix, but they don't fix and don't answer at all.

Garmin Cyclops more accurate, but don't have enough data to cover everything. Hate them that need to create specific account for specific devices. Really? Little bit pricier than others.

Poi Factory. How to say, less cover, accuracy... it's so so, not really at best. They don't have nice logo at specific speed like SCDB. False warning when crossing highway and there's small road under the bridge. Imagine run at 65 MPH or more,
suddenly it says there's incident at speed of 25 MPH for example. Scared to death when you feel you need to slow the car on the highway of 65 MPH? Really?

All of them cannot avoid trap police on highway. Poi factory shows some, but not in every highway, and it's very outdated even you have latest update. For example, got ticket recently at Carolina State for more than 300 USD, because there's
police car under cover, that means they use normal car no sigh of police, and they hide in the bushes of small country roads. Terrible experiences.

Hope you guys can chime in and give more option to avoid speed trap. Thank you and hope this help