I do like this but I can't recommend it. *TRY THE FREE DEMO FIRST*
The seattle graphics look late-1990s, in fact they remind me a lot of Microsoft FS a decade ago, it makes hard work of FPS, and the physics are nothing outstanding. If you can get past that, it can be a pretty relaxing chilled out way to pass some time but no way any realistic flight simulator in its physics or procedures. Nobody in Multi-Player
It has the "Reloaded" update which means you can fly around in maps from other BI games (Arma2 chernarus etc), but in all good concience I wouldn't recommend this as a standalone heli-sim when there are far better (and free) flight simulators out there with a lot more content and arguably a lot better helicopters.
Maybe one if you just want to chill out flying an easy helicopter around, the sound effects are ok, the missions are fairly simple and basic, but at the end of the day most people will have to leave the graphics on medium and probably just fly around a bit in free flight while they're waiting for dinner then put it down and forget about it for a while.
on a scale of 1 to 10 for being memorable: 4
Maybe I missed the point of this game - But it doesn't seem to have a unique selling point or do anything particularly well enough to make you come back to it very often