Just got off of a round trip where I flew both the E175 with United and A220 with Breeze. I love how quick boarding is, and I even say the FC seats in the E175 are more comfortable than the larger jets. The A220 was also a 5 hour transcon route, got me home from LAX with no need for a connection. The absolute future of point to point flying. I to this day think the A220 is the best narrow body passenger experience in the sky.