It was worth the hassle when you could buy the property 20% down, live in 1 of the 4 units, collect rent on the other 3 in excess of your total expenses. If nothing went wrong we would live for free that month. But you know a $5k roof here, $15k eviction into a remodel there. Those cap rates are only a distant memory now. The person i sold the property to also owner occupied it but was far from cash flowing. I think they have gained 100k of equity by now but still not that great.