I read this topic last summer before travelling through Poland & staying a few days in Warsaw. I signed up on Odloty, about a month before my trip, favourited a decent sized selection, maybe 20 or 30. Within just a couple of days maybe 20% of my "favourites " got delisted! Either banned or whatever.
I drafted a generic email explaining I'll be in warsaw soon & looking to make appointments, & sent it out to maybe 25 advertising girls, only 2 or 3messages were opened/read & only one replied!
we kept in correspondence & advised her of my date in city. Had her number, booking was simple, she spoke reasonable English. When she arrived she was nothing like as attractive as her profile photo, obviously without any face pictures on the site it's impossible to accuse of bait & switch. The girl i saw was at least mid 30's Ukrainian who'd had a kid, her ad stated she was 25! In the booking i got her to admit to being 30... yeah right! she did OWO, CIM, CIF & A, rate was cheaper than polish WG in UK but considering her age & looks I wouldn't boast was good VFM!
Strangely in my hotel pool i bumped into 2 stunning early 20's students, also Ukrainian, on 'holiday' in August in Warsaw, who i later found out were also 'members' of the gym, not hotel guests, never saw them again, they were cold & not keen on chatting/practicing their English. Perhaps they were WG but i got nowhere.
For me Warsaw was a major disappointment, I've met several stunning polish WG in UK but thought the overall quality in the general female population wasn't as high.
Good luck & let us know how you fare, maybe I'll give it another chance if i hear better success reports.