Looking at maybe using this service.   Are they safe and worth it?   The talent look amazing.

How about including a link so people know who you are talking about?  It makes it easier for people to help you out.

Second, the agency has a ton of reviews!  You can look at the reviews and see which ladies are getting excellent reviews.  Doing some research on your own would answer your questions.

http://www.theeroticreview.com/reviews/showAgency.asp?id=1170

One of the girls seems to be new;  no reviews.  

http://www.city-girls.com/provider-brittney.html

Hopefully by the time she arrives there will be some posted.

Unfortunately, you cant count on any reviews being written.  Most guys dont take the time to write reviews, even though almost all of them want to read them!  Usually you can figure that a service with a track record is going to continue down that road.  We typically dont want to put a girl out there that is not gonna give our clients a bad service!

Have used City-Girls a few times.
This agency actually is safer than most.
Have seen two different girls and both were absolutely amazing.
Go for it!!

Two of the girls look very similar and same stats to girls from other agency FLES...

Liana:
http://www.fortlauderdale-escortservice.com/liana.htm
Sharon:
http://www.city-girls.com/provider-sharon.html

and

Amina:
http://www.fortlauderdale-escortservice.com/amina.htm
Brooke:
http://www.city-girls.com/provider-brooke.html

I noticed Liana/Sharon similarities because Liana from FLES was just in Chicago last week and I was seriously considering a visit.

And noticed the similarity in Brooke who is here next week, and Amina... even the same heels and black stockings outfit (both are smoking hot

Are these the same girls working with different agencies?  Regardless, I would love to visit with any of these hott ladies.... if I could figure out if they're legit!  :

Brooke is not the same as Amina.
If you get CG vip (free) you can see faces.
Pros & cons like any agency.
PM for details...

Nice catch.  I am pretty sure you are right with both of the two you listed above.  In addition, Brittney from City Girls appears to be Tiffany from FLES (you can tell by the tattoo on the left ankle):

http://www.city-girls.com/133-chicago-escort-Brittney.html
http://www.fortlauderdale-escortservice.com/tiffany2.htm

I think Lola from City Girls might be the same as Silvi from FLES

http://www.city-girls.com/130-chicago-escort-Lola.html
http://www.fortlauderdale-escortservice.com/silvi.htm

In addition, I think that Michelle from City Girls is likely Penelope from FLES

http://www.city-girls.com/provider-michelle.html
http://www.fortlauderdale-escortservice.com/penelope.htm

That being said, I don't think there is any concern.  Most of them have reviews popping up on TER under both names.  Nice to get a look at their faces though on the FLES website.