I ran a Speed 10 from 2000 to 2015. At the time I found it adequate although the fact that it just can't swing a 7" Stuart Models flywheel irritated me on several occasions. I used a double-swivel vertical slide that I still have, and found I could do satisfactory milling on small, short cuts.
The crossslide is narrow, and that limits rigidity both in turning and milling. The spindle bore is too narrow for lots of purposes.
In 2015 I bought a Warco WM250V, a good deal bigger machine, and adapted the milling slide to fit – and I'm happy with that. It's your choice, but I'd save your money a bit longer and get something bigger and better than a Speed 10.