Just moved to Sacramento and it is great for mopeds. I moved from the outskirts of another city which was horrible for mopeds. 45mph roads every direction from that place.
Any time you live out in the sticks, even if the roads are marked at 30, people will do 50+ so I have never felt comfortable being a solo moped on those roads which are usually winding with blind curves.
I've done more moped riding in the last 2 months than I had in the past 2 years.