I’m considering going for the tablet version in September, meanwhile listening to what the community says about the smartphone version.
For a product designer this can be a great tool, given that an SLA model from a 3rd party agency can cost many hundreds of euros.
You can print multiple small parts and assemble them together.
You can print the models during the night.
As for economic value, I see potential in customizability combined with geometric complexity that other processes do not allow, especially for jewellery. Customized stamps, ok but you can do it much faster with laser cutting/engraving. The build time here is the major issue since you could build, say, 4 small objects every day which you would then have to sell with say $50 profit to make some kind of living. So I do see value in highly customized, personal items such as jewellery, figurines, or custom projects like Olaf Diegel does.