Pretty much what they said. I prefer the rope. I have the attachment, but always too worried about dropping a valve. Also, I've never bought seals that didn't come with a nice little valve stem cover (as opposed to the tape), but the tape is good a idea...

I use a very similar spring compressor (mine needs that little spring. I might have to try adding one), but really my only contribution here is to recommend a small magnet pickup tool to grab the keepers. Otherwise they're very difficult to get a hold of...