I know 2 people that are running the ESS VT625 with Dinan DCT software.
From what I know, no complaints.
1 of the owners switched from the ESS file to Dinan and said the Dinan shifts smoother then the ESS file
this is good to hear. I was about to go ess dct tune with my ess 625 kit but Dinan sounds like it's smoother
