While none of the Gnutella clients are exactly perfect LimeWire is one of the best. It's definitely one of the easiest to use and most eye-pleasing. Worth a try at least. Personally I have about four I use regularly (LimeWire, Gnotella, Gnucleus, and Phex). They all have their strong and weak points.

Keep in mind many of the differences between Napster aren't LimeWire's fault. The Gnutella net isn't quite as easy to download from as Napster was and all clients will suffer from this, but a little effort will pay off.