To kind of give you a sense of what you are asking, it is like me asking you if Eating Out is a good choice? 

Paying PMI will certainly eat into your cash flow..

It didn't change my algorithm ranking and I ended up eating some of the cleaning cost unless I wanted to be completely out of whack with my market (I'm already on the higher end).  

I was referred to you all by a contact and have been eating gup the podcast this past month or so.

Is there looming capital expense items that could eat up years of your cash flow.3. what about other regions/types of property.4.

Reno loans are quite expensive, eats into your margins quite a bit, so much competition here as well...

From my experience the maintenance on the properties could really eat into your cashflow.  

I used a hard money lender that would finance 100% of the purchase and rehab so as to not eat up bit a couple grand of that 43k. 

Bitcoin is eating EVERYTHING.

If you don't fall within that category you either get caught up dealing with the BS minutia of the business or are reliant on outside PM's that eat away any margin because there is significantly more time that goes into operating Section 8 rentals and don't let the "guaranteed rent" make you think otherwise.