You are using an alias that is not showing any reviews, so I can't see what kinds of girls you see, so I will explain. If it's a Kgirl review, their standard menu calls for DFK at the door. Newer girls may not always do it, but unless you have bad breath or body odor, you can expect it MOST of the time from established girls on your first visit. With indies, it's not as common when you are seeing them for the first time, but is standard on repeats. There are some girls from both groups who will demand you use the mouthwash she is supplying before any DFK, regardless of how well she knows you. The point is there is no hard and fast rule, but I see MOSTLY Kgirls, and I would say I get DFK on arrival about 80% of the time, but I use some mouthwash as I get out of my car at the incall before I even meet her.
Do reviewers exaggerate in reviews? Some do, most don't, IMO. Experienced mongers know that exaggerating what happened during the session makes trouble for the girl. If you say you did something with her that is not on her menu, then other guys seeing her after you will expect the same service, and if they are refused, they will get pissed and write a bad review, which hurts her business. That's why it's incumbent on reviewers NOT to exaggerate and say they received services that they really didn't get.
With that said, always be aware that this is an individual, not a team, sport. YMMV, and some guys, especially regulars, may get services that she doesn't offer to everyone swinging dick that walks through the door. Unless you want to cause a girl trouble, you should look at her profile before you write her review and see which services she performs. If she did something with you that is not on her profile, then you should ask her if it's okay to put it in your review. If she says no, then be happy you are a VIP with her, and don't publish off-menu services without her permission.