Ive just returned from Carphone Warehouse having swapped my S8+ for the S8. I didn't't road test. The phone is too big for me personally, the length was just way too much. My S8 that I've just today exchanged for feels absolutely awesome.
I've sent the S7 Edge back within my 14 day cooling off period. I can't live with the screen sensitivity, it's ridiculous.
Why it doesn't just have a setting to adjust it I don't know. I may look again if a fix is sent out, but no way can I cope with this.