What are you looking to get out of this rework station? If it's only for keyboard related stuff, then it's a waste. You won't be able to solder or reflow switches because it'll melt that plastic center peg from the switch that's sticking through the PCB.
I have a separate desoldering iron. (see below) I actually need rework station for what is intended for... reworking SMD. There are probably guys around here who can hand-solder small SMT parts and get it right every time. I am not one of them. My hands are just too unsteady. When I screw up, I need to be able to get a part off without lifting traces. Those MCUs are $13 a pop, and the boards can be a lot more than that!
If I'm understanding you correctly, you want this station for the hot air gun so you don't have to manually solder with the iron. I asked if it was for keyboards only because if it was, the hot air gun is not worth it because you'll rarely get to use hot air to solder/desolder stuff. Rare occasions (such as GH60 prototype or bpiphany's Filco controller) don't come up very often, and the rest of the soldering are either switches or diodes. Switches or diodes must be soldered with an iron.
Here is a pic of a KMAC I worked on with a SMD diode. The red circles are pads to reflow or solder, and the green circles are areas where the plastic from the switches will stick through. If you use hot air, the large green circle will be too close to the red circles and will melt. The other two smaller green circles is probably too close as well. You have to use an iron for this for a more controlled heat transfer.
Now if it's only for keyboard MCUs, these will be very rare occasions that you'll have to deal with. If you're desoldering a MCU, then chip quik will work wonders. If you soldering the really tiny legs, then a lot of flux will work wonders too. You really don't need hot air for keyboards. You can get a $45 soldering iron + $5 fine tip that will do the same thing as a $180 rework station that includes an iron and hot air gun. You're basically paying $130 extra for the hot air gun and accessories.
Now if you're using hot air for other electronics outside of working with keyboards, then that xtronic you link and the Aoyue that I have are both great stations.