I will be honest; this is a genuine opinion and I know many other people would not share it.
I think the SC4 is close to an ideal lathe for model engineering, and I would not swap mine for other lathes that have held that distinction in the past.
It's one shortcoming is the slowest spindle speed of 100rpm which is a bit fast for cutting coarser threads. But no lathe is 100% perfect. I do have plans to address this with an intermediate belt pulley geared down about 1.5:1.
Neiel