How do you feel about mixed properties?

[Charles Press]

Here's the question to pose to all you BP folks.  How do you feel about mixed properties?

A mixed property being a mix of a commercial and residential use in one property.  Hence the mixed term.  Most often you'll find the classic commercial space on the street or ground level and residential on the 2nd, 3rd, etc floors above.

One listing I looked at this type.  Below was a sandwich shop and a bar.  Above it was several apartment units. 

Let's assume it's in your target area and the financials work for you.  Do you purchase it (at the right price) or avoid it and why?