Episode 4 is now out.
This is exactly what it sounds like when someone sets up a video camcorder across the room, presses the little red record button and does a show. Echo city.
You have strike two in addition to that. The accents of the actors would normally give spice and variety to the presentation and be fun to listen to (see: everything sounds better in French), with the echo it just makes everybody hard to understand.
You need to find a "studio."
There was a recent broadcast radio show built around a voice performer getting stuck in a closet while she was recording an audiobook.
She was overdue to perform the book, so she took her recorder and blankets and quilts into a hotel room closet, closed the door and started to record her book. Apparently, she does this all the time. She has a stand-alone recorder and makes a studio as she goes.
In this case the door locked and she couldn't get out. The broadcast
radio show was built around her efforts to get out of the closet. She left her recorder running as she was calling for help, so the show was cut between her live broadcast dialog and the closet dialog.
But she had a studio.
Quick note on Episode 3:
If you have to record while they're grinding espresso, Just stop talking and pick up the whole sentence
again after they stop. If it's random enough cafe background noise, nobody will catch the edit. Warn the actors you are going to do that. Same if you meet someone you know and have to stop the show to say hello.