I just bought one of these, too, but one of the new full-size 30g gram models, an R2SA-US3M-WH. It really is light compared to the Realforce RGB I have at work, but it's enjoyable to type on, even if it's not very tactile. I'm considering replacing the domes with BKE ultralights someday, though. I'm using it with a Mac Mini, and I have no issues with it. The Mac/F key swap button is the greatest feature for me, since when I work from home, I have to remotely log in to my work PC, and the software we use makes heavy use of F keys. This is replacing a Das Keyboard 4 Mac version, which was very nice, but sounded very rattly and pingy, and of course comes with cheap lasered ABS keycaps.