Never used them myself, but it seems to get all the recommendations on the S4 forum.

I interviewed them carefully and found they use all the desired care and high-tech materials (microfiber). Albert is the head of the technicians and knows his stuff. I can trust him to do what is needed and no more... very conservative and never pads the bill.

I've got some messages about them in my FAQ. Highly recommended.

Here's the address:
<A HREF="http://ypng.infospace.com/info.zip/ypv3/detail.htm?wyn=1&qb=&recid=0019837111&xmlurl=http%3A%2F%2Fyp110.superpages.com%2Fxml%2Fd etail.phtml%3FT%3DMountain%2BView%26N%3Ddiablo%26P G%3DL%26R%3DN%26SRC%3DInfospace%26S%3Dca%26AL%3D%2 6MC%3D%26map.x%3D212%26map.y%3D125%26level%3D8%26l at%3D0373911%26lng%3D-1220727%26POI1lat%3D0373911%26POI1lng%3D-1220727%26POI1name%3DDiablo%2BAuto%2BPolishing%2B% 2526%2BDetailing%26streetaddress%3D%26city%3DMount ain%2BView%26state%3DCA%26zip%3D94041%26LID%3D0019 837111%26LS%3D%26display%3D1%26AD%3D%26GV%3D0%26GL %3D%26FN%3D%26PP%3D%26CID%3D&kcfg=ypus&ypinsp=0&resolve=location&searchtype=all&fromform=qsearch&qhqn=diablo&qn=diablo&qc=Mountain+View&qs=ca&qk=15&xmlurl=http%253A%252F%252Fyp.superpages.com%252Fxm l%252FspPage.phtml%253FSRC%253DInfospace%2526STYPE %253D%2526PG%253DL%2526C%253D%2526N%253Ddiablo%252 6E%253D%2526RE%253D%2526K%253D%2526Z%253D%2526R%25 3DN%2526PI%253D%2526T%253DMountain%252BView%2526S% 253Dca%2526A%253D%2526X%253D%2526P%253D%2526NA%253 D%2526GL%253D%2526CID%253D%2526sear">Diablo Auto Polishing &amp; Detailing</A>