Seems pretty good for a 1070 <$500, from eBay, Ozzy stock.
You'd probably need good airflow in your case to compensate for the heat generated on this as it's a single slot card so won't have the best cooling/fans on board.
Review here: https://www.techspot.com/review/1417-galax-gtx-1070-katana-s…
You know for how much money you save you could strap on a $50 water cooler from MSY and chuck on some heatsinks on to the VRM's and memory modules. Defeats the value proposition of the card but it'd be fun!