I set up the DP8 12" - comments as follows
Cartridge alignment easy with removeable arm tube & you simply line the stylus tip up with the edge of the headshell if you have installed the arm at the correct pivot to stylus. I checked this on a Feickert protractor.
Tuning the eccentric lateral side weights - I found these fiddly to accurately dial in.
The vertical distance between the plane where the tonearm is mounted to the plane where the record is placed should be between 28 mm (1 1/8”) and 40 mm (1 9/16”).
Fairly course & a bit clunky - big issue I had was the platter to armboard range is narrow and on the turntable I installed the arm on I had to make a custom bronze base to get the arm into range. Without doing this the VTA adjuster has major issues.
Soundwise I did not hear the bottom end punch that I expected from the reviews. The Dynavector & FR64 have considerably more punch.
The sound was well balanced and reasonably good - on a par with a Helius Omega which was also tried.
I like that you can buy different armtubes to optimise the effective mass, I also like that you can convert the arm from 9-12" without buying a new one.
Downside of spindly armtube was that I did find it sensitive to vibration.
I think its a good arm, particularly if you get a good deal, but not at the level of Kuzma 4Point etc.