The answer depends on how fast your Mac is. NeoOffice is basically the same thing as OopenOffice, but NeoOffice is designed to have a more Mac-like interface. However, NeoOffice is coded in Java (iirc), so it is somewhat slower than OpenOffice. If you have an old machine like a G4 450 mhz tower, the NeoOffice is too slow to use, but if you have a Mac that came out in the past few recent years then NeoOffice should have acceptable speed.