I use sawbs and the solution. Send my camera to CPS twice. Never got a better clean that what I can do at home. In fact once came back pretty worse that what I sent.
I've sent my stuff to CPS a lot- never had issues. They clean very well. At least in the 10 or so check & cleans that I've had done. I've also had repairs done- they'll clean it out at that point, too.
Yes CPS will accept the 60D.
I think they do for USA CPS, but not Europe.
They apologized and did it again for free (no coupon) but even when received the camera the second time, cleaned by the "senior" technician... Even if clean of dirt visible by the eye and a loupe for such task, when tested the camera with photo and photoshop and levels, there was traces of the cleaning solution still on the sensor. While this is not visible in regular photos, when you take photos with a lens like the MP-E 65, it's very visible and should be totally cleaned when when done by a professional. I'm not bothering anymore sending the camera in for regular sensor cleaning.
They did a great job cleaning the dirt that got inside of the pentaprism area, but for regular sensor cleaning, I really saw no difference what what I can do at home, in fact, I get better results with the swabs. And faster.. May be I have to try another CPS center.
A note on the side... When I received the 5D MKIII.. Brand new... Never used.. It was dirty.. Had some little hairs, like from a bad brush, and the sensor had a few speckles of dust....... Got a second unit.... Also dirty....