I haven't managed to properly use Matrix myself, but I am part of a number of Gitter rooms that includes people using the Matrix bridge. I certainly wouldn't call that bridge "nice": all their messages are posted by a single user called matrixbot, that simply prefixes it message by their Matrix username in backticks. I'm not sure if the people in the room who aren't aware of Matrix understand that that's what's going on.
I understand why it works this way and I wouldn't know how to do it better; it was more of a general critique of the bridging approach, I guess, and hence a reluctance from my side to call it nice.