I have been using it for about 15 years now for structural and some mechanical type design. I use it on an almost daily basis, for normal linear elastic, but over the years I have used it fairly regularly for elastic buckling, non-linear material, non-linear geometry and dynamic analyses. I speak very highly of it in all regards. It has very good graphics. And good support. It is top quality, and very importantly, a real pleasure to use. I have had a little experience with some other FEA packages and with some beam element packages and a number of CAD packages and it makes them all look bad.