Well, we flew economy SIN - CDG - SIN last month on SQ and I have to say that the service was excellent. The seat wasn't great but I had no illusions about what I was going to get.
The IFE was fine, and my meal on the way back, a lump of beef in a red wine sauce was truely superb. The wine was only a VDP but still pretty decent and I had more than enough for the second half of the flight to be just a blur.