I travel as a solo, 40-something petite woman, and use Lyft from LGB without issue. I always screen shot the driver info and text to hubs so if anything should happen, he has that info. The only "yikes" I've had was someone that drove above the speed limit and changed lanes a lot.
Lyft and Uber are supposed to pick up on the outer island/road/lane thingy (that is, the arrival pick-up lane), but it's been maybe 50-50 on inner or outer road. It usually takes them 6-8 minutes to get there for my ride.
I have had worse luck with the taxis there... I had one awesome driver out of 6 trips before trying Lyft there.