Current SFR deal analysis

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Price=300k Down=20% Interest rate= 3% 30 yr fixed P&I=$1012 Tax per month=$291 Insurance per month=$67 Total per month=$1370 The home is 4 bed/2.5bath 1800 sf Built in 2005 so very low maintenance. Very rent friendly area, already ran the rent-o-meter comps with follow-up with craigslist and other sites. Projected rent: $2000 Cash flow=$630 Sound good? Am I missing something? Any input would be grateful!