They are fast. I'm a driver and they take off like no other. My first model I ever drove was a G and I took my CDL in a G so they hold a special place in my heart.
I'm not a fan of the 102GL3 / G4500 and the D4505 models but the DD series 60 Engines with the B500R series Allison Transmissions made up for their lousy looks in the Motor Coach Industries
Yeah I didn't really have the patience to take a really long Greyhound trip even tho I love buses haha.. between then not being on time and the customer service.. I think I'll pass