So I decided to TOFTT and thought I would share my experience in case it helps someone.
Google said ShowPark Davinci was temporarily closed so I didn't even bother trying to check it out (maybe next time).
I used Adult Prague to search for in calls. The downside with the website is most of the ads don't give rates so just gotta text. Picked Alina Realgirl
https://adultprague.com/alina-realgirl-escort-prague-8747
Texted the handler and got a fairly quick and professional response so it made me feel better about TOFTT in a foreign country. Picked a time and was told to confirm 30 mins before (and get the address). Rate: 6000czk/hr (approx. $340 cdn).
I show up, text, get the entry code to enter the apartment building (so now I know the entry code - weird) and the apartment number to go up to. I walk into an echo-y empty lobby area that leads to an an outdoor courtyard with no door. The lights turn on by motion sensor. To the right, there is another door to the stairs and elevator where I need to input the entry code again. The lights in the stairwell don't turn on. It's almost pitch black and now the motion sensor lights of the lobby have turned off. I have to turn on my phone flashlight to guide me up the half set of stairs to the elevator entrance. Am I getting ambushed? Good thing I left my passport and valuables in the hotel so I'll just lose the cash I brought and probably my phone (and hopefully they don't want my organs). This is super sketchy I think to myself, but I pushed on, maybe stupidly so, up to the 4th floor, cautiously looking around each corner. At least the motion sensors lights on the 4th floor worked. I walk over the apartment. Do I knock? Do I open the door? Will someone open it? I need get any instructions about that.
I decide to do a very light knock and the door opens. Holy shit! It's the girl in the photos (sure, the photos have been touched up, but that's the girl! early-mid 20s, advertised height/weight seem to match). She welcomes me in, only the mudroom area by the entrance and the bathroom has a light on; the living room and bedroom are dark. I'm still cautiously alert in case someone lurking in the shadows. She asks for the donation and whether I'd like to shower (seems legit) so I hand it over and take a quick solo shower. She waits in the living room and when I come out, she strips down to her underwear and leads me into the bedroom (I bring my clothes and phone with me just in case).
Service-wise she seemed a bit green, slightly timid, but smoking hot. Kiss, bbj, daty (totally smooth), "classic sex" (that's what they call it here) with multiple positions. Finished and laid on the bed chatting with her. It was only her 3rd day in Prague. She was in Paris for one year before (not sure if she was working as an escort there or not, I didn't ask, but if not, that explains the timidness) - she has family in the Russian occupied part of Ukraine so can't return now. She will be leaving Prague in a few weeks to stay with her friend in another country (I didn't quite catch where with her accent and basic English).
Overall, I probably wouldn't repeat with her due to the slightly green service, but I would use this handler again and try one of the other girls on their roster. For reference, she also said her 20 min rate is 4000czk so I assume that's another option. The handler sent me some other girls that all had the same 6000czk/hr price so seems to be standardized. Really, other than the sketchy dark stairwell, the rest of the experience was nice.