"...the bonus is you will get a more accurate picture of what you are about to do."
Really - what makes you think bad reviews automatically provide an accurate picture? Lots of bad reviews are posted by people who - for one reason or another - bear a grudge. We have seen numerous cases of it here, in our forums. You'll see people saying 'Don't buy from company X whatever you do' and then going on to relate a bad experience they had. All sellers will get dissatisfied customers, it is inevitable, and it has always been that way. What has changed is that the internet has allowed people to tell the world about their bad experience, as you have done in your post and the reader has no way of knowing whether a bad review is justified or not.
The bottom line is that bad reviews do not necessarily provide a more accurate picture of something.