This is very true for earlier versions of eclipse. It was slow, crashed all the time, and hung up for no apparent reason. On top of that its their plugin manager was beyond subpar. But recent releases seem to fix most (if not all) of the serious problems I saw and its very usable now. But as always the more ram you through at a java program the better it runs and im using 4 gigs which I think probably makes a big difference too.