Overall healthy, and definitely not a junk food vegan.
Not a perfect vegan dieter though.
I do know the nutrition facts, and try to consider them whenever possible.
No soda except the occasional Bionade for me either, and mainly whole foods, mostly prepared from scratch. But not always and there are some vegan convenience foods available now even in Germany, and days when I come home from work late and/or am just too lazy. Also, I simply love to eat, incl. stuff like cupcakes and chocolate
I would assume that a junk food vegan (friesatarian?) is likelier on the road to ex-vegan than anyone else, even if convinced of animal rights and veganism, because one cannot subsist on junk and even just withstand a non-vegan world, let alone promote veganism, in the long run.
A vegan perfectionist on the other hand, who would never eat anything that does not fit perfectly into his daily nutrient requirements, might be an ex-vegan rather sooner than later too, because mainly rotating around ones diet does not seem very sustainable or productive either. Of course these are extremes, and it is very well possible to be a healthy eater without rotating around diet.
So I guess being a happy vegan on dietary middle ground (vegan, of course, but not obsessed over health food or junk food) is best after all.