It's been a few years since I used an emulator, so dont know the current ones. Consensus on Reddit seems to be that Bluestacks is quite good. Nox seems to send your info to China, so dont use that.
I've been really liking the game currently! It's very story driven, but also has an interesting (but simple) combat system. It might be a bit slow-paced during dialogue, but I dont mind since the stories are fun and interesting. Music is of course great!
Some slight spoilers on the setting: The time eras seem to be 300AD, 1100AD and Antiquity (still dont know the exact year for Antiquity). 0AD is depicted to be the start of some kingdom. Ashtear resides in 300AD. I dont know whether she's Lucca, her ancestor/descendant or just fan service.
I see the setting as a sort of opposite to the Chrono world. Main character uses a sword, while "Cyrus" the frog man uses a Katana (Opposite of Crono and Frog). The world in the future is floating in Another Eden (12,000BC in Chrono), while the Antiquity in AE seems well-being and civilizationally stable (like 1999AD in Chrono). Main characters are a brother and sister, so I think that theme is also similar to Chrono series. There is also a demi-human race called the Beasts in 300AD, that are angry at humans.
I wouldnt mind a Another Eden subforum, where one could analyse the connections, stories and fan service in AE in comparison to Chrono.