I met several JAV girls that's were just debuting or not too far into their JAV careers. They were all right just like other regular DH or SL girls so it's really YMMV. One of them stood out because she's prettier than most of the DH girls that I have managed to book with so that was a nice bonus but otherwise nothing out of ordinary.
I would say it was great meeting Sumeragi Yuzu-chan (I did post a review about her) and it was worth the money (to me).
You can sometimes even meet the girls from DH or SL before they even become popular enough and switch to be JAV. I was tracking one girl that was somewhat popular at her DH shop then became a JAV girl, but then she just stopped doing JAV and no information afterwards. Maybe she just quit from the industry.
Agreed on sumeragi yuzu, had a session with here thanks to
@AnotherTag review.
Also agreed on YMMV for JAV stars, I had kinohana amiru in Landmark really way back in my earlier P4P days and she was kinda alright, lucky to have had ririsu ayaka a few times in proportion, i was able to pass as a half. she really knew how to ride and is one of my fav cg but she didnt really like to kiss and her nips were a bit sensitive so she didnt like too much stimulation there.
Most recently would be ninomiya rina who is mirai from tiara, she is a sweet girl who was fun to talk to but she did get really ぽっちゃりdue to covid and tends to tire out easily so is really kinda meh. Among them my fav is ririsu ayaka but even she doesnt compare to my then and current favorite girl. Then it was miina from last scene who moved to landmark and then disappeared together with it. Currently, mayuri from new fuyajo was was asuka / kasumi from dolce before covid, apparently she worked at kings clubs before but not sure what was her name.
After trying sumeragi yuzu she would be my no.1 jav girl i tried so far i guess but for those who want to unload multiple times im not sure what your experience with yuzu would be. She has a very different tempo which is surprising a refreshing change from the usual routine and she does a pretty mean massage i honestly almost fell asleep haha
Dont worry too much about JAV and just find a girl who may seem to be your type. Go check out their 写メ diary and research, it is the best thing you can do.
I do wish that i started early such that i could have tried the legendary sato haruki or my then fav jav actress sanada haruka hahaha