I like that it's easy to use as well! You can create your own models easily with this software (you don't need any other expensive CAD programs). It has some minor bugs here-and there but nothing majorly annoying - you just have to get used too them if they bother u at all since i've been using for about 4 months now without having an issue yet :P The price isn;t bad either considering how much time/effort one could save by doing so compared tot he cost in buying another program which would be more costly than purchasing centilelo itself ;-) So far everything works fine though sometimes when saving files from different applications such Photoshop / Illustrator etc., my PC freezes up temporarily then comes back once restarted however no errors are shown nor do anything seem outta place until after reboot again..