BitBay is based in Poland and it is online from 2014. From what I read on their site and on some reviews it is trusted exchange, especially for domestic residents who can withdraw fiat on ATMs without card just by using 6 digit SMS code and option
"withdrawal without a card". They also have deposit / withdraw in Polish Post Offices, which further makes it easier to use this crypto exchange. Also users can trade and deposit without KYC, but for withdraw you will need verified account. They also not working for USA citizens.
I think that the only advantage of BitBay is in some options mentioned above, but that options are only for users with Polish phone numbers - It is not entirely clear whether strangers can buy such phone numbers, since they call it
Premium SMS service.
I would not write anything about CoinDeal since you know everything about them
When I was searching for the opinons about CoinDeal, I found more positive ones. That was my first cryptocurrency exchange, because I'm quite new in this cryptocurrency world. Everything works fine at CoinDeal, cannot complain