This model of Dual delta was purchased by the place that I work at. It was our first 3D printer. We fell in love with it. However, as time went on, the problems began to mount. The extruder keeps jamming and it works well only with expensive filaments like colorfab. In addition the gears seem misaligned and shudder incredibly loudly on fine motion.
The USB connection with this printer is unreliable and can only use the SD card, which got corrupted just a few days ago. I am not waiting for a replacement as my printer is still under warranty.
The school I work for bought one of these for my classroom. I have build 3D Printers from many kits but this was by far the easiest to assemble.
The kit was delivered safely to the school and with the experience that I have with these things I was able to get it together in less than 5 hours. The printer has been able to give some cool prints and I have already made a book for the blind on this one.
We are now planning to open an exhibition for the blind where we install prints of famous Native American painting. The only thing that I think is missing from the printer is the software support. The Cura software supplied with the printer does not support it well and needs to be customized to be used properly.