It doesn't seem to matter how many times you go over a text, or in how much detail, or how many different pairs of eyes see it, seems like small errors always sneak through. So my attitude has always been that if a reader spots an error and lets me know, I'll correct it as quickly as I can.
I submitted new versions of several chapters yesterday, each with one or two very minor corrections each (a missing letter, or wrong word, that sort of thing), thanks to one eagle-eyed reader. I've submitted new versions of two chapters today, both with one minor correction, that even the previous eagle-eye missed but a different reader spotted.
So, if you find an error in the text, let me know and I'll correct it. Unless it's a style issue not a 'mistake'. I'll happily debate style issues until the cows come home. And occasionally I've even been know to concede the point and change the text as a result.