No we have custom made design and logo maker so build from 0. Fancy product design does not have a proper layer manager we modified Lumise in a way so that we can use any SVG logo or any vector object like brochures, business cards instantly. So auto ungroup and edit text instantly. We do not need to make templates. We have ready made designs, countless. We did the same with NBdesigner but both are on hold and we do not have time to complete it but its working from a-z. Small example i upload a svg logo as a clipart select it and everything can be edited. But we need to convert it to products. It is normally never a good idea to use a ready made plugin but we had spare time but now those 2 are on hold and it's a waste. Furthermore there are more limitations, unlimited products will be impossible. With a lot of saved designs and visitors the script without any customization will take ages to load. We learned that in the many years. I was the second person in the world who made a online logo maker. The one i have for sale here was also customized from a plugin. We use Laravel now for our logo makers and with 30K designs it will not affect any loading time. We can use a a 1GB ram server if we want to with 100 people online on the same time. Its all loaded via XML and Json.
But for a year or to rank quickly these 2 are perfect and then you make a custom project. But for that you need designs with a lot of tags (Lumise and Nbdesigner). The demo import from NBdesigner will not work because it will be full with duplicate content in google. Same for Lumise. So in short with a importer and the amount in designs we have ready to go it easy to rank because i am also a SEO specialist. And you can make quick money like i said. But not if you must make designs one by one then not.