Good, that's really important . Least you won't be chasing around looking for the correct book (9 pages) of codes to troubleshoot/delete/modify & deal with when that red light starts blinking.
I do not like being at the mercy of someone else being the "only" person being able to get me running (or not). I do NOT want the feeling of what 95% of most Americans must feel like when their car quits running and they have NO CLUE what is wrong and are totally at the mercy of someone else's schedule and expertise to get going again. Not in my Bronco anyway. I built it from the ground up and I want to be able to repair about anything on it if it needs it. Just where I"m at and that's why the 3.5TT is out of the running for me.