I have an MFT/3 which I think is great for power tools. The various hold downs/stops/clamps and the grid are great for securing work. I like that the MW1000 extension clamps right on and that the old systainers or STM1800 can be an extension. I know many people use the MFT as a track saw cutting station, but in my space with my workflow it has just never worked out for me. I use a track saw with a TSO square to break down sheet goods away from the MFT or a table saw for the smaller pieces. The MFT is great for securing pieces when you are Dominoing, routing, or sanding.
When I decided to embark on hand cutting dovetails I found it lacking. I built a moxon vise that I could clamp to it, but the table is just too wobbly. I added two pairs of stabilizer bars, and it became acceptable. If you are primarily into hand tools, I would recommend just building something quick and dirty out of construction lumber to start. It will be heavy and whacking on it with a pair of chisels or sawing shouldn't flex it at all.
You can get something together for not a lot of money, and find out what you like or don't like about the layout. I think the one thing that is true of most hobbyist woodworkers is that the thing we build in our shop is our shop. Once you get experience with something, you'll find what you like and don't like and seek to improve it on the next iteration.