Chicago
Really HARD...just my own perference 
Everyone have a Happy Thanksgiving Day!!!
In fact, I don't even ask for TER user handles, either as a screening method, or any other time. While I've heard the benefits of reading reviews (both avoiding "hard reviewers" and learning what a particular potential patron enjoys), I personally find that reading a gentleman's reviews tends to set undue expectation and false scripts. An experience is based on two people, and trying to construct a template/expectation set from his written past experiences (which are further skewed by TER restrictions) not only throws off the organic development of the experience, but pegging an individual as a certain "type" denies the gentleman the opportunity to approach me in the way he wishes to. I have one lovely friend that comes to mind who's seen me repeatedly for dinner dates, and somewhere along the way I discovered that he typically orders agency girls like Chinese takeout. Had I read his reviews before hand, I might have either refused to see him because I'm obviously incompatible with his standard MO, or else taken a very different approach during our date purely based on prefabricated assumptions pulled from his reviews. Instead, I read him as he came to me, and we have a wonderful organic relationship as a result.
In fact, the very act of knowing that an individual is an active reviewing TER member turns the whole experience into more of a "performance" than an "experience," and I'd rather avoid that whole monkey dance, if possible. So, while I can understand your not-quite lady friend's stance (lower scores hurt business, so better to avoid chronic low scorers), it's not an ideology I choose to incorporate into my own practice as a companion.
All that said, there exist 3 types of chronic low scorers that I would prefer to avoid when possible.
The Black Hole-Individuals seeking to fill a bottomless emotional void in their life. This lifestyle is a fantasy escape of one form or another for many people (both patrons and providers), but people with severe emotional voids are like drug addicts-they'll use you up, drain you dry, and still feel like they didn't achieve that satisfactory point of "enough" (emotional or physical). They score low not because of the provider's efforts, but because the provider didn't live up to the unrealistic expectation of filling up that internal void.
The ED sufferer in denial-Often egotistical, sometimes taking ED medications, but forever in denial that their inability to get it up, keep it up, or finish might not be in relation to the provider's efforts. The horror stories some girlfriends have related on efforts going both above and beyond the call of duty, often well over the clock, only to be rewarded with a lower score and complaint in the written portion simply baffles me. (And really, let's be honest. How often do any of us actually see a reviewer admit that he has ED in any of his reviews?) Sometimes this sort of individual is also one of those Black Hole folks, since the blue pill seems to have less of an affect on emotional related impediments than pure physiological ailments.
The Self Important "Connoisseur"-Writing reviews and dispersing advice as if they were an internationally renowned sommelier critically appraising a new wine in order to educate and guide his readers. These folks seem to be in the hobby less for the actual enjoyment of the experience and connection, and more for the rush of accumulating status and brownie points with their buds on the boards. I'm all for objectification in the right moment and the right measure, but I'd rather not be the cookie in the middle of a circle jerk, thanks.
I should mention, though, that all three of these sorts of folks seem to be rare breeds. Even without reading reviews, the vast majority of gentlemen I've met during my time as Eve have been exciting, funny, though provoking, weird (in all the best ways), and/or all around wonderful to have in my life. 