I have this impression that ts4rent has been going downhill. I perceive that the number of listings in my area has been shrinking, while the number of listings at tsescorts has been going up; from that, I wild-ass-guess that some of the ladies are becoming disenchanted with it for some reason(s)?
I kind of like certain features of the site, mainly that they have ladies' social media links, and they have client logins for things like keeping a list of favorites, and occasionally I've used the internal messaging.
I only ever put one review up there, and IIRC the 'vip' credit granted for putting up a review was little or none. I had a go at putting up another review recently, but it was rejected on the grounds that I hadn't used their internal messaging system to contact the lady (WTF?) I also noticed that the one review I had done a couple of years (?) ago was gone - perhaps they're purging all reviews where the internal message system was not used.
For me, in my area (San Jose, CA) tsescorts rules the roost - ts4rent is secondary, trans.eros is a distant third, simply because there are very few listings there, and all the rest is ore drained slurry, hardly worth bothering. (When I travel to San Francisco, Los Angeles, Las Vegas, or some such, I reference trans.eros more closely.)
TER still rules the review roost. I never would have bothered with the other review platforms but for the long absence of TER in the goood old USA.