Last night was my first trip on the light rail and I have to say, I am impressed. The trains are frequent and comfortable, the parking (at the Woodlawn station) is plentiful and well lit, and for a $3 round trip, it can not be beat.
My ticket was carefully checked by an inspector, so make sure you buy one from the automated machine before boarding. You can not buy a ticket on the train and the fine is steep!
I'm not sure why someone would say "Filth" about the Lynx, as the trains I rode were very clean. Drinking, eating and smoking are not permitted. Having ridden the MARTA in Atlanta, the METRO in Washington and the London Underground to compare, Charlotte's system is excellent. There's only the one route (Ballantyne to Uptown) but it does what it advertises - easy transportation from South Charlotte into the city.
Four stars... I'm a fan!