The RS-1 has changed over the years, becoming more and more unpleasant (same with the SR-325). The older models when John first took over weren't too bad. Still never held a candle to Joe's stuff, but not too bad (especially when he used Joe's drivers).
Kind of a shame Grado has basically turned into this parody of itself. The only "recent" Grados I've remotely liked are the PS series: PS500, PS1000, and PS-1. They're definitely flawed, but I didn't want to rip them off my head after a few minutes.