20 unit Apartment complex - $700k, good deal or not?

[Tou V.]

Looking at this decent 20 unit apartment complex.  Below are the current break down of income and expenses.  PM fees are also included in Total expenses.  Sales price is $700k.  Loan would be 25% down at 4.5% fixed for 7yrs.  Would this be a good investment?  The numbers have held steady for the past few years and should remain relatively the same.  

Rent Income:  $167,940 

Less: Vacancy/Deductions:  $16,794

Effective Gross Income: $151,146

Less: Expenses:  $81,727 

Net Operating Income: $69,419

Less: Debt service: $31,920

Total cash flow:  $37,499