A Q400 will operate at 365 at near max gross in the FL's everyday. Well I should put a disclaimer that I only have a little over 250 hours in it from the months of Feb through today but it will realistically do 360 true everytime and it is not uncommon to see it hanging around 367-368. I can not vouche for the summer months or after the plane is well weathered.

As for the landing, I have never landed any other series but it has a VERY stiff gear just like its predecessors. That being said you can land it very soft, probably as soft as any plane I have ever been in but it is typically flaps 15 at around 6 degrees pitch and a little luck and skill mixed in. Keep in mind that a tail strike is just over 7 degrees so I have been finding that I do not want to be in the innaguaral group of those to tailstrike the plane so I stick with 5 degrees and just do "good to semi good" landings because it is more benneficial to my career.