So the Geeetech Prusa i3 Pro B is a clone of the Prusa i3 mk1. It uses a direct drive MK8 extruder with 3D printed parts and more. It also has a laser cut acrylic frame unlike the MK1 which has a CNC milled aluminum frame.
It can work somewhat out of the box unlike the A8.
Frame is more sturdy compared to printers of its generation.
You can buy it for $150 now a days unlike what I had to spend.
Can print flexible materials.
Mostly opensource components.
Wonderful people geeetech is. You will get excellent support from them.
Threaded rods used instead of linear. Plenty of problems with accuracy of prints.
3D Printed components on it are very brittle but are opensource so you can print spares.
Hotend takes ten minutes to heat up triggering thermal runaways on it.
PSU very underpowered.
Thermal runaways are disabled along with many important failsafes as well.
Motherboard came broken.
I had never accomplished something so hard as to get this printer working so good. It was a series of mistakes for about 3 years. The last two have been very wonderful. Thanks to geeetech support and support from the community as well it prints beatifully but I ended up replacing 80% of the components on it thanks to my stupidity and poor design of the printer.