quest was stupid easy the first week when everyone was looking for them. after that it just became a pita. thankfully i did the quest on five of my 50s during the first week. afterwards i have helped my guildies and a few players in section x do their quest.
doing it now solo with no one around or even a few takes forever. i feel sorry for these players especially those who started playing mmos with wow or wow clones as they are just not used to such a mild time sink. fast and easy is what most gamers now want in mmos. this quest isn't fast but it is easy.
i agree that something needs to be done with the chance of finding the pieces.
Yeah the current mechanics is really stupid as you have to rely purely on luck to hit the 25-meter radius. What I think they should do is show the distance to the nearest part after each scan, so you can orient yourself faster. I'd rather try to locate the part from a kilometer away then trude through the muck, fuming when I don't get the distance indicator after each scan.