I am extremely happy and impressed with the DOF Reality H3. The material quality and engineering are excellent. The design is very well thought out and very flexible being suitable for a variety of hardware combinations. Make sure that you order all the add ons you need for your set up as the DOF team will ensure that they fit together and that you get all the bolts and bits.
Once received, it took me a couple of days to assemble. The manuals and videos were clear but each segment needs to be studied well before assembly. Calibration was straight forward with the downloaded DOF software.
The final product is worth it. I would not hesitate to recommend it to anyone.