Shortly after RegioJet added the new Irizar i8s to their fleet, I got the chance to ride one to Vienna.
From the outside it looks almost the same — just the front and rear lights are different. Inside though, I was surprised how different it feels. The seat doesn't look that impressive at first glance. It's not particularly high, but sitting in it is comfortable even for a tall person. What I liked most was the space — even when you recline, the person behind you still has a fair amount of room.