It's easy to use, it has an intuitive interface that allows you quickly get used with your software without any difficulty or problems of incompatibility between versions; The support team helps me whenever I have some problem using my product; There are no more updates for this version so we can't update our products as fast as before when there were new releases every year (we had several years delay). We need something like caducity but only for autocad uc since many users still work under older versiosn than 2020 which makes us unable to integrate their old files into ours newer ones.