Personally I thought the guys setup was ok. Its a bit streamlined really and not traditional/old school looking though, so no real charm as it were. As far as using composite goes on his LCD, I cant say what kind of quality he gets, but I use it on mine for some things like Nes, and I used to use it for Pce back when I got my LCD originally, and it did fine. Actually, I really liked the way game stuff looked on it. Mine is a Toshiba though and I have the option to not stretch anything and my set is calibrated well. I stopped using crt tvs in my room, and stuck one in the living room for my daughter to use, and my son has the other one. Right now the only classic game system stuff I buy and play is Nes and Snes, and I wont be going back to a crt for them anytime soon.
Also like to point out, not much really wrong with using composite on TG/Pce, or Snes, or lets say something like Saturn, Ps1, 3DO, or Jaguar if you have to. Those systems had pretty solid quality composite output right from the start that wont hinder the enjoyment much. Now, if hes using composite on crap like Genesis where the composite signal was just shit, then that blows. The Genesis, NeoGeo AES, and Master Systems original composite is shity enough to actually full on warrant putting in extra effort to get RGB or Svideo out.