I chose ARCHICAD because of its 2D/3D integration, its versatile platform (Mac & PC), and its powerful graphics capabilities. Overall, BIM helps us check continuity, including live connections between plans, elevations and sections as well as bi-directional updates to building schedules. There are a number of features in ARCHICAD that are extremely beneficial. The solid element operation function helps clean up the model. Open GL provides for quick visuals on connections, siting, detailing and fly-throughs. The section cutaways with perspective make it really easy to communicate projects to clients and General Contractors. The tech support team has been very helpful as well.