How do you see Robot performs when it is compared to other FEA softwares like Staad, SAP2000 or SCIA? I have used Robot now 5 years and some and it feels on some areas it has only one advantage over other programs: it's simpler to use. Other FEA programs seem to have better options when calculations get tricky. For instance if you're going to do multifloor building where all walls are concrete panels it's very easy to get incoherent mesh somewhere. And sometimes if you model slab and a beam under it and you set offset for beam so that beam top level and slan bottom are at equal height results can be odd.