They are both robust and very scalable.

Likely, I will end up house-hacking in one these cities to remain available for property managing.My overall goal is to create a scalable portfolio of cash-flowing properties.

We had a conference call about a month ago and I explained my situation:  10 units, would like something easy to use, yet scalable for future growth, not too expensive, cloud-based, mainly for tracking money and not for things like service requests, and able to integrate with a payment processing system once I pull the trigger on that.   

As mentioned before returns at the end of 20% over 5 years, doubling your money in that period seems pretty good (COC 20% over 5 years said in other way)... the big advantage I find is in scalability, segregation, bonus depreciation and being passive... however if you are active I tend to believe SFH are for better COC return; just as an example: SFH off market at 140k + 20K repairs; appraisal at 200K; immediate refinance of 140k; so I have left 20K in the deal and now gained in equity 40k.

I would have to say a couple thing that have got me interested are:1. scalability.

NOW the DMM has a scalable compounding effect.

Even if I could get lucky in my market, I wanted to BRRR where it was somewhat scalable.

Even if I took the time to figure it all out myself, manual pricing interferes with scalability in my opinion. 

I'd rather use scalability and profitablity to generate the wealth. 

Its a modified and more scalable version of a Lonnie Dealer.