Boston
Perhaps I should make a guide for you guys 
Whenever scanning ads on various provider sites, to see what girls are in town, there are many many subtle indicators that an ad is likely to lead to a rip-off, bait & switch, or otherwise poor experience.
Obviously, no reviews is not a good sign, but new girls don't have reviews so it's not a clear indicator and the main reason to see such a girl is to be willing to take one "for the team". In any case, if there are no reviews for the girl, here are additional hints to help you decide on avoiding or not:
As far as Eros ads go, for this particular girl, look at the link:
http://www.eros-boston.com/ads/mi-brittany45-isabella2.htm
Notice the URL contains 2 names. That is a sign the girl has used another name in the past. Or, a sign that an agency is involved when the claim is independent. If she's used another name in the past and nothing shows up on a phone number or areas search combined with any of her names, that's a sign she might be trying to disassociate herself from bad past reviews. Of course, it might also be possible she's just trying to start fresh for legit reasons but it's a read flag nonetheless.
More hints...
If the picture is of a total knock-out model class girl and the description is mostly about her beautiful looks rather than the service she provides, that's another red flag.
If the contact information on the ad simply contains her name and number, no e-mail address, no web site link, and the area code is for a known rip-off region like Vegas, that's another sign.
If another ad for another girl visiting from the same region for the same visiting dates, also without reviews, be prepared for a bait & switch. If multiple ads with the same number and different girls, call the number up and if a girl picks up ask her if she's so-and-so (pick a random girls' name from one of those ads). If she says yes and is able to schedule right away then it's a bait-and-switch. The way that scam works is the "agency" has a number of girls available and simply provides whoever is "next in line" rather than the girl expected to be handling the appointment.
Lack of information on whether she provides incall or outcall, and lack of rates in the ad, another sign.
Too many promises and guarantees of satisfaction in the ad.
The claim "not an agency" typically means "yes, this is an agency".
Pay attention to the photos. Sometimes it's difficult to tell what is re-touched or not, if anything, but many photos that have been re-touched are very obvious and will appear almost painted. Flat-colored areas on her body, uneven blurring, mis-matched lighting, overdone blending to get rid of blemishes.
For pictures that have been validated as accurate, and where the girl has had reviews, good or bad, for guys who don't like ending up with average or baby fat girls when the pictures seem to indicate hard body, additional signs are if her ad only provides bust size and not waist or hip size or weight. Also if her hand or something else is covering her tummy in all pictures. If all her pictures are taken from the side or from high ceiling-level angles. Also look at her upper arm size in comparison to her torso - if at least slightly out of proportion on the bigger side of things then chances are her lower body is also chunkier than what is portrayed in the pictures. Clothing and angles that cover up areas on her that might be chunky.
For agency ads, with multiple girls in the ad, if the pictures don't look even reasonably like they were done by the same photographer using similar backgrounds then that's another sign. Especially if all the girls are total knock-outs with just their faces blurred.