I have been using the MW1000 "rolling workshop" for a few weeks on a project now.
I am pretty pleased with it. I was not even interested at first, especially given the price.
At first I just got me the extension table to use in the workshop with the MFT3 - and it was pretty much perfect as an extension table and I use it a lot. I even toyed with the idea of getting another extension table - not the whole kit.
Then I realized the current project - and the next one - is pretty much perfect for this. I am building acoustic panels on site and go from room to room building panel walls with lots of rails that come together with the Domino. The Domino runs hot on this project!
Now I do my stuff, pretty much all relevant tools on board, the rest tucked underneat the table in separate Systainers on a roller. Then I just fold it up and roll to the next room and "set up shop".
Though it isn't perfect, it is a better solution for me than anything else currently on the market. I might even bring out the extra extension table to the work site since a lot of the rails and stiles are around 2500mm long.
I still think it is on the expensive side and I have another rolling cart with a foldable Stanley workbench that takes more of a load on one go for some jobs but the Festool MW1000 set works great for me for most of the jobs.