Regarding the operating cost, it is always a function of the HC weight so I believe it will be higher for the AW169 than for the H145.
Fuel: 720 Kg for H145 vs 900 kg for AW169 but the PW210 burn more fuel and the Helicopter drag is also far more important so I expect a draw in term of range.
Finally, about certification, I just ask the question why the company announced a FAA certification in the following month after the EASA one and finally we have to wait more than a year. I hope FAA rules are not new for AW.
To be honest, I have friend who have bought some AW169, and with all the delay they are not sure it has been a good choice.
However, to finish on a more optimistic point, if AW is able to increase the MTOW to 5 tones, and enhance the fuel tank, I’m sure this HC will become a nice asset for companies.