We have two. Greatest thing since sliced bread. The design of the system is very good, and the tool is well engineered AND built. Very easy to use, although setting up the bit projection (which determines the tightness of the joint) can be a bit tricky. As Ben & Jerry say "It costs more, and it's worth it".
We offer it as an option on chop service, our joining method for chop and join, and for the first step in making splined corner frames.
If you get one, since it sounds like you probably use a relatively limited number of profiles, I would suggest you make some spacer blocks to set the Fence (A) and Routing Height (B), and make a list of which settings to use for each profile (C). Takes a little time to make them, but well worth it for quickness of setup and ease of use. I can literally teach someone to use ours with our profiles in less than 30 seconds. And they will be done right every time.
Note the Outside Fence (D), which can be used as a second stop for wider profiles when you want two keys per joint. Note that, in order for both sides to be set precisely the same distance from the bit (so that they will line up when you put the corner together) you will need to first use the regular V-shaped fence, hold the moulding against it and then push the outside fence against it. Do this on both sides, then move the regular fence back towards you to set the second location.