I am looking for a 3d printer and I am planning on spending 300-500. I need it to be assembled. I am very busy and do not have the time to assemble it. I need something reliable and a printer that is not limited on which filaments it can use. Any suggestions? I am looking at an m3d or a Wanhao duplicator i3. The duplicator i3 seems to not be very reliable. I am also new to 3d printers.