Yes, my opinion is that a website lends more credibility to a lady and it's a way to hopefully learn more about her.  Alot of women get very creative with their sites and it can certainly generate more interest than just an ad.  

You look beautiful in your pictures. Too bad you're not closer!

It will set you apart from the girls who just advertise in escort malls like Tryst and Slixa plus give you added credibility and visibility.

is that I'll check out a providers personal page and then when I don't find what I need ("cater's to") I will hope that she also has a profile on a site like Tryst, Eros or P411 to find out the type of clientele that she will entertain. Most providers didn't list that info on their personal page, even in their FAQ section. I think that if you list all the info that you can on a personal page you'd be golden! 👍

It tells me you take your craft seriously, it allows us a deeper glance into your personality and professionalism and should, if done correctly, greatly limit the questions we may have of you. It is really a win/win for both you and your potential clients.  
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Btw, welcome to you for posting here as I think you are a new poster...or maybe just new to me. lol.

is that they are also likely to have no reviews, or else reviews that are old.  TER policy does not allow a review of a provider who does not have a CURRENT link to a website.  Ad platforms like Adult Search or Eros are generally acceptable, but not having a proprietary website raises the question of whether the provider is really committed to building a brand, which you do by providing excellent service that can be shared in reviews.  

I usually skip ones who don’t have a website and reviews. I’m sure I’m missing a few gems by doing this. But not something I like to roll the dice on.

You may also want to try twitter or reddit.