I wouldn't spend 260EUR on a 1070 in 2019, when you can have a 1070TI for less money.
The iChill cards did review well, so it's a solid model - I just wouldn't spend more for a 1070 than you can get a 1070TI, or potentially even a 1080 for.
While you may not need the power available, more power for less/same money should be a no brainer.