Were can I get a 2004 s2000 softop oem or is their any good reviews with robbins

 

A simple search would show you plenty of positive reviews on the Robbins top. I just put one on back in March or April, love it so far.
I also went with the straps from Modifry instead of OEM.

If you want OEM, you can search around the forum for a used one or spend $700-800 on one from hondaautomotiveparts.com vs the $579 Robbins sets you back from topsonline.com