I installed the hitch myself on a 2015 Audi Q5. I had most of the tools but realized I needed a 10mm hollow nut driver after I started and this turned out to be most annoying to find. I could only find this locally in a set, and the first one I got wasn't deep enough to work so I had to go buy another one. Long story. The other annoying tool-related issue is related to the torque specs - a range of 10lb-90lbs were needed for different bolts and not many torque wrenches have that range. Luckily a handy friend had two different wrenches that worked.
Anyhow, for the install, the instructions and photos were ok but left a bit to be desired in a couple key phases. Several of the bolts and screws were a real pain to get to. My biggest complaint was around instructions for removing the actual bumper cover, which only said "carefully pull the fascia
away from vehicle." I wish the instructions had given more specifics about which direction to start to pull from and more specific indication of where tabs and clips were. I tried to be careful but ended up tearing a couple of the tabs close to the driver wheel arch, and all but broke the two pop clips near the top of the cover that sit behind the tail lights. I still don't know the right way to have popped those out. Since I felt like I was breaking the car this part was very stressful and made me regret attempting the install even though I'm competent with the tools.
All that said I am very happy with the result.