While Terminator 2 (1991) is considered by many as a sequel that heavily improved on the first film, the extended edition added more suspense and an alternate ending that put the non-James Cameron sequels to shame. In fact, both Ebert and Siskel really loved the film.
The visual effects have aged very well and more so with Michael Bienn’s surprise cameo in the extended version. It improved over a great sequel that was a REALLY tough act to follow.
The extended edition can be found on DVD, Bluray and digital media at any store.