The previous gnutella versions tied up tons of bandwith throughout the whole community and internet by daisy-chaining every client together. Once everyone switches over, then it will be all good.
I do think however, that limewire should have arranged for their client to switch over to ultrapeer once the numbers of 2x clients were sufficient. I see most users getting fed up, and not switching to 2x which defeats the whole purpose. Gnutella is full of thankless leeches that are unable to see the whole picture and cry about paying a measly 6 bucks for a version. I do not see the 6 dollars as paying, but rather as a donation. If you do not like it, take your 6 bucks and go buy yourself a meal at mcdonalds.