Not lift shared myself but did manage a lift sharing scheme for a while. If you can find someone to share with then it can work great and save a fair amount of money. Good way to make new friends or business contacts too if you’re that way inclined.
The main issue I found when running a scheme is people can be a little put off offering regular lifts by the rare ‘what if’ scenarios e.g. what if I have to go shopping on the way home, what if I have to leave early, so are more reluctant to offer lifts. Works better (if an employers internal scheme) if people work regular hours rather than shifts/flexi.
For wider schemes, check out Liftshare or Bla Bla Car though be aware that people sign up for these things and then don’t always bother to reply! When I broke my collarbone a few years ago and couldn’t ride to work, there were some people near me advertising lifts but they never replied to my requests annoyingly!
If you can sort out an informal arrangement with more than one person to give you some options if someone does have something crop up, then you won’t be left stranded. Some employers will offer an emergency taxi home if needed – does your employer run a scheme.