The same can be said of bombardier CRJ series The same location of engine but much more cramp and shorter leg roomI enjoy watching Sam's YouTube channel quite a lot. It seemed like a fair review to me.
I think the design for this aircraft, like I said before, is quite dated. The engine positioning being one of the most visible issues.
Had it been released on the original launch date this would have been less of an issue.
But today there are better airplanes in the size class from both Bombardier and Embraer. Even the Sukhoi Superjet is more advanced.
Let's hope the C919 program does well.
It is also noisy. I fly often in CRJ series plane. When ARJ was design the rear engine is popular with small plane and thin and supercritcal wing can carry much load . I don't think Bombardier CRJ series is much more modern than ARJ 21
ARJ 21 is the first attempt to design and manufacture regional jet in China after long Hiatus. So starting from low industrial base It is understandable that it take China longer time than say Canada
And using all metal construction. It is 7 year from first flight to entering commercial service
But even Japan with their MRJ plane suffer repeated delay in entering the service. 6 years from first flight to service