You asked if it's the best, and I can't answer that. I've never used one, but they seem messy and don't really do the full job. I'll go over my cleaning technique and let you draw your own conclusions.
I have an Okki-Nokki, which is similar to the VPI referenced earlier in the thread. I've heard the Okki-Nokki is quieter than the VPI, but it's still pretty loud. What I do is put a record on to clean, starting with side 2. I wet the record, turn on the motor to spread the liquid, then turn it off to thoroughly scrub (the scrubbing is VERY important). Then I turn the motor on, run the vacuum for 2 revolutions, and turn the vacuum off. I then wet the record, scrub again, vacuum for three revolutions, and dab off any major drops of liquid with a clean cloth near the label. Then it still needs to airdry a bit, so I listen to one side of another record. When I'm done listening to the first side of that record, I come back, wash side 1 of the record I'm cleaning with the same method, listen to side two of my other record while the washing one finishes drying. Then I sleeve the listening record, put the fresh cleaned one on the turntable, start washing a second record, and so on, stopping at side breaks to wash another side. Always put cleaned records into a fresh innersleeve, and mark the cleaned ones in some way (I write a C on the plastic outersleeve, but that's a personal choice).
The problem I see with the Spin-Clean is it doesn't provide a scrubbing surface (same problem with the Nitty-Grittys and similar machines). It also doesn't come close to fully drying, so you'll need to come up with a plan for that. A real record cleaning machine takes up less than 2 square feet and is self contained and doesn't splash all over the place. The Spin-Clean will require space for scrubbing, and drying and isn't a good option unless you want to do a lot at a time. Maybe someone will post who has direct experience with this device, but this is what I can see from what I know about it.
I'd say the Spin-Clean is a reasonable option if you have less than 100 records you plan on cleaning. Once you're into the couple hundred range, a vacuum based machine like the VPI or Okki-Nokki (and there's at least one more I'm blanking on) is really the only way to fly. If you're up in the thousands, or if money is no object, or if you just want me to be super jealous of you, get a Monks/Loricraft.
