I think I have 320 GB Slim PS3 from 2010. No idea if that's good thing or not ^^;
Due they made a new model after that (with other changes then bigger Storage).
Though I read one person with a 2012 360 who said that graphics Were really bad. Though we don't know if he/she was disappointed At the YT graphics or he/she got the worse graphics problems on last gen.
As I said, I'll Hopefully be Able to tell you guys more today.
If I get the worse situation though, I don't know What I'll do. I'd be fine with the YT videos graphics, Not much with What other people got. Could I ask for a refund?