QATAR Airways wants a more reliable 130pax aircraft?
Go with the new Embraer 195 E2!
Based on the actual Embraer E190, the E2 will be a very reliable machine, with huge improvements in economics.
Comparing the backlog of the E190 E2 vs CS100/300, we could see that the CS100/300 is a shame... and the Embraer E2 is a great success.
The Embraer E2 is the best aircraft in this range of 100-132pax.