It's not the best table for planing, but it's not terrible. It's also a couple of inches too low (for me), but the dog hole layout is very useful so sometimes I do some quick planing on it. I don't find the "wobble" to be too bad.
The other problem is I don't like to be whacked on the head by the guide rail when it falls down.
If I didn't have a workbench I could definitely get by with an MFT. I spent over a grand building my own workbench, including the vises, and I could have got two MFTs for the same price. I'll bet if I connected the two MFTs together, I would have a bench every bit as stable as my maple workbench, and it would be a bit larger too.