I loved my stay at Ashton SE. Never had issues of any kind. My 2nd floor unit faced South Blvd. Despite the music activity in the area, once inside my apartment I heard nothing or very little. Same is true with regard to the Blue Line that passed every 15 minutes. I was told there are concrete barriers between the floors that make the sound proofing so good. Must be true because I never heard noise above me.
Pros - location, location, location; high end interiors which include, travertine floors, wood flooring (carpet in bedrooms) deep soaker tubs, stainless steel; peaceful surroundings; well maintained grounds; newer complex; garage parking and flexible lease terms.
Cons - appliances are on the cheap side, but I guess one cannot have it all.
I highly recommend Ashton South End as your new home.