Maybe I like it because I come from Blitz3d ( before 3dgs )
Leadwerks set of commands is quite similar
Moreover I still prefer the traditional 00P hierachic style over the new " components " phylosophi
A matter of taste of course
However about the speed I have my doubts
I have a one year old desk top , an other five or six years old desk top and a two years old lap top
I downloaded Leadewerks and Unity3d demos
Unity demo ( The Island) runs fast on all the three PC's
Leadwerks demo is acceptable but I would not say fast, only on the new desk top

I accept that , as Quadraxas said , In leadwerks, stuff like ssao are always on by default but frankly speaking I dont see that advantage in terms of visual quality

Did anybody make other comparative test ?