I enjoy just about any aspect of design work; however the part that gets me up early each morning is drawing/modeling! What helps us get through working long hours is our teamwork ability when it comes to collaborating throughout project teams. Being able to stay connected as we progress during such projects has been and continues to be key because we are constantly learning new ways at incorporating designs into our product line and in so doing creating better products all along the road. I really haven't found anything yet to dislike. Give yourselves some time; be patient while building models; allow yourself adequate time to do so. It will certainly come together well once everything starts coming back together. We've used many applications - Autodesk's Tinkertool included many aspects but none specifically address 3d printing of various types of implants or their molds prior to production and fabrication. This was addressed by Elucis which made my job much less difficult given the number variables one may have to consider when attempting to model an implant to make sure the outcome would meet approval standards and expectations. I love how easy it is to use as well as being able to model any body part or organ that i need. It has made my job so much more efficient! There really isn't anything bad about this program at all but if there was something else they could add then maybe make another version of it? But other than that its perfect!! You can do almost everything using Eluci3d.