I also have the T3 .. its fine as a lightweight router for freehand work. There is a little play in the plunge bearings so some care is needed ensure you apply pressure evenly when plunging.
I have used it with my dovetail jig with no problems.
As others have said, the main thing is to use good quality cutters - I would also recommend Wealden - super service and prices. A small diamond hone is also useful to keep the edges keen.
HTH
John