Search the ion forum, the 2.0 has been mentioned, in-depth. It's basically overstock ion parts, cobbled together then given an updated reg that Gog now has standard (Gog = SP). So in essence, the 2.0 = the 1.0.
Durability was never an issue to responsible people. Can't run it into the ground like it's a spyder or tippmann, since it operates differently. Good lesson in proper maintenance.
But like soccerstud said, just get a Gog Extcy. Everything the Ion needed, can be found on the Extcy.