i have JRT2, came stock with my VPS. The quick hit/small bump sensitivity is not the best, but it takes medium & big hits well. comes with 20ml QR, which is pretty stiff, but not as good as fixed 20ml (a la boxxer, manitou). I have had them taken apart and re oiled/built once in about 8 months, but thats because i bottomed out really bad , and oil was going everywhere.
They come set up 65-75 kg riders i believe, so if you are under or over that you might want to change oil rate or spring.
All in All, i have raced about 15 dh races on them, go riding every weekend, mainly DH, "freeride" as well as city rides & commuting and have very little trouble
would love some SuperT's but....