The best thing about this program is that it's very easy to use as you can simply upload your project drawings or models easily within seconds! It also works with most CAD programs like AutoCAD so no need of having two separate applications anymore which saves time in managing both projects at once. I dislike how every new version adds more features but does not make previous versions obsolete. This isn't an issue if all users are using latest version but would be better only when everyone updates their software together instead of one by one (we used old model because we thought they will update soon). We have been able to manage multiple design files from different contractors without any hassle thanks to glass house application.