Since getting my Spin Clean at the end of 2010, I have put around 500 rekkids thru it, 99% to excellent results . . . I have done many before/after comparisons with thrift-store, Barter Town, gifted and even brand stinkin' new vinyl and can say without reservation that this system works! . . . and playing previously cleaned ones only requires a quick carbon brushing or wipe with the AudioTechnica cleaner to get that "just washed" sound . . .
I have not deviated from the SC method except to spin 4 times, or more depending, in each direction . . . I clean and store in groups of six records ( I try to have 30-40 ready to go; total discs, not albums as some albums are multi's), placing each one in the small stainless dish rack I found at Pier 1 (no rust!) and only begin drying when the last one is racked, so to speak . . . by the time the last one is spun, the first has dripped off enuff to not saturate the drying cloth, but not so long as to become air-dry . . . and I have found that the cloths from SC work very well and leave no dust behind, just make sure you pre-wash them and tumble-dry them prior to first use . . . I lay the newly cleansed down on a 'bed' of two 100% cotton tees and dry using the cloth, circling in one direction, turning and/or shaking-out the cloth when needed . . . when both sides are dried, I do inspect them under fairly bright light (six-bulb chandeleir about 4 feet above me noggin) and can say that to these hazel eyes, they are shiny-black, blue, red, white, green, etc. and dust-free! . . . and unless physically damaged, sound as good as they look . . .
Thats my 1 cent (tuff economy) . . . if you've only ever used Discwasher-style cleaning methods, as I did back in the day, or never had an RCM of any kind, like I didn't, this is a fairly inexpensive, highly effective system . . . of course you'll only get out of it what you put in, meaning if you ain't into manual labor, then pull the trigger on an a motorized vacuum machine and save yourself the frustration . . .
I was considering one myself, but since I am only regularly cleaning those new-to-me records, including new ones, I think I'll stick with the Spin Clean . . . and use that dough for . . . . MORE GEAR & REKKIDS!!!!
EDIT: after reviewing some of the posts, I see some are using the Spin Clean AND an RCM . . . overkill, OCD or other?