If you are looking for a keyboard with a very smooth feel and a slightly padded feel when it bottoms out then I would recommend it. I have been using a RealForce 104UW (white, variable weighting) for the past few weeks at the office and it is a very comfortable keyboard. The key texture prevents your fingers from slipping around and the key action is very effortless and smooth. The whole thing is very solidly built and does not slip around on the desk or creak when you pick it up. The sound is quite pleasing although the sound of the space bar pinging back up sticks out because it has a higher-pitched clack than the other keys (different kind of plastic). If the silenced variant were not so much more expensive where I live I might have gone for that instead.
It's a light-feeling keyboard, which I notice particularly because I am using a Unicomp Customizer buckling spring keyboard at home. After typing on the Unicomp it takes me a little bit of time to make the transition back to the RealForce - the buckling springs have trained me in a pretty heavy-handed typing style and I tend to hit the bottom hard until I remember to back off a bit. I also commit more typos on the RealForce while I am adjusting to its lightness. I do wonder whether the 55g uniform Topre would have been an easier transition (again, it was a lot more expensive where I live). If you have not trained yourself on a stiff keyboard this may not be an issue. Once I get used to it the Topre is lovely and quick to type on.
If you have a reasonable touch typing technique and your hands are not moving around a lot when you type, the variable weighting makes sense. If your hands move around a lot and you don't want your keyboard to train you in a different technique then the uniform weighting might be preferable. I have discovered that I tend to stop and think with a finger resting on the (very light) A key, so I often see "aaaaaaaaaaaaaaaaa" on the screen. This is a bit annoying and one of the ways this keyboard encourages a more rigorous technique. (If I had the right technique my 4th finger wouldn't end up over the A key.)
Also I have discovered thanks to this variable weighting that with other keyboards I was typing slightly to my left to make room for the number pad. The RealForce doesn't really encourage this since its keys are weighted for particular fingers, so the number pad ends up sticking out to the right (as it was originally intended, but that's not how I had been using it). The mouse feels distant now, so if I were buying again I would consider the tenkeyless version.
