Last Friday IAD-xxx ERJ175 I got a PDB of my choice. First time ever since they brought back PDBs that I've gotten my choice on an Express flight. Great FA and she offered another drink in air (as expected). Flight was only 58 minutes.
99% of the time ERJ175 Express flights offer zero PDB for me - not even water. The return flight to IAD had zero PDB and almost no service in the air "due to turbulence" which was non-existent.
-RM