Not an area that I think of as a good place to invest money Personally, I don't like areas of high unemployment. Lack of jobs means few can afford to buy. If no one can afford to buy, prices are low and stay low. Lack of jobs means renters can't pay rent.
Do your research and make a visit and look before you buy.
I seriously suggest that you also look at 5-6 other areas of America and compare what you could purchase in another area. Throw a dart at a map if you don't have any other states in mind.
If you still like Buffalo the best, then you have done your homework, and will more than likely be happy with your purchase.
A disclaimer: I only invest close to home and New York is a very long distnce from me. I don't have first hand knowledge of the markets in Buffalo, just what I hear from other investors (the guys who are doing it for a living, not the guys who are trying to sell it)