I like how easy it was to use at first sight with minimal training needed from our staff who have been using other CAD programs prior. The interface seems intuitive but there are some quirks here or there (e.g., sometimes when you double click an item under "materials" column does not open up sub tabs immediately). There's nothing specifically wrong about this program - just minor quibbles such as things being too complicated/easy once learned vs user friendly initially learning curve may be difficult if only used by those without previous experience programming & designing products. We were able make changes easily within minutes after receiving quotes directly off site instead having them wait days upon waiting weeks until sending back sketches via email which could then require more time before getting answers due to human error etc..