Because of the volume of custom cabinets my shop manufactures, edge band trimming is very important to us. Edge trimming has been important to me professionally since 1946.
In my opinion the MFK 700 is the most effective and productive trim router I have ever owned. And I own many of them, each set up to do a specific task.
To answer the OP's question, if you need to do a lot of trimming, then the MFK 700 needs to be considered. In Festool classes Steve Bace and Brian Sedgeley have shown and taught us other uses for the MFK. My opinion is that other Festool routers do those non-trimming tasks more effectively and generally cost less.
Also, even with training and experience, it can take some time to switch an MFK from one task to another. I need to perform many trimming tasks, often at the same time. I found very quickly that once set an MFK stays set for a very long time. For my workflow I can easily justify dedicating MFK 700s to specific tasks.
However, if I had a smaller tool budget, I probably would do my vertical trimming with an OF1010, so my first MFK 700 could be devoted to horizontal operations.