its a perfectly nice aircraft to fly on from a pax viewpoint - and the approach into LCY is particularly interesting with the steep approach angle. I didn't think the flap noise would be severe enough to alarm passengers or give people who didn't fly a scare, but it' quite a unique noise, I can't imagine it scaring anyone. I didn't think it sounded like an aerodynamic noise but on my flight next wednesday I will pay more attention!
Incidently - I have a work colleague who absolutely despises the 146 - he reckons everytime he flys on one he gets a headache and blurred vision - although I think that might be the complimentries more than anything else!