Following a lead from Yelp (http://www.yelp.com/biz/patagonia-par...) I went for a real beefy sandwich and was not disappointed. Argentinian beef is banned in the US (political trade reasons) and is nearly always grass fed. I have had it in Paris and it is very beefy (in a good way).
The husband/wife team are very proud of the Argentinian heritage and the vinegary salsa, sharp lettuce/tomato/pickle salad and JUICY beef and cheese sandwich were very well done. The bread is made for them next door and the whole experience is strong if you like well cooked tenderloin or skirt steak on a roll for $9. I did enjoy it and will go back for an evening meal of the big guy on the grill starting at $36.
No liquor license and street parking only (mostly in front of the park). Not truly handicap accessible but similar to the others in the area.
Next time I'm going with someone that likes frites so I can sample a few. 4314 W. Vernor, Detroit. Lunch at least on Saturdays. Other hours unknown so you may want to call. On the GoatG cleanliness scale more than acceptable. On the Boagman value scale; a special occasion. P.S. Don't wear a new shirt or better bring a lobster bib or coveralls. And don't let the second date wear that new white silk blouse either(from experience).