I watched the film twice in the cinema, and will be going again.
I'll buy the official DVD when it comes out in November.
Does this make me a bad person.... No.
Have I paid enough to Lucas to warrant me having the bootleg DVDs...Yes.
If the picture and sound were so bad that I could'nt see or hear anything I would have given them back. But for now, as a stop gap untill the official DVDs are out, they will do fine.
I don't see the harm.