Multitracking on CEP is only part of its uses. It also has a FANTASTIC dedicated sample editor, that is listed along Wavelab (and maybe soundforge, now) as THE go-to editors. Though you might not know it yet, an editor is a VERY necessary tool in any studio. If you do any sampling (either your own or from cds/downloads) an editor will help you immensely. You can trim, truncate, pitchshift, slice up, amplify, etc. If not, a sample editor will also help you fix up your tracks (such as fretnoise, vocal pops/lipsmacks) and whatnot.
You can also use an editor to spice up your mixdown ("master") with...
CEP's effects. While they're not the best in the biz, CEP provides you with every effect you'd need to explore mixing and sound design. Included are reverbs, delays, eq, filters, flange, chorus, phaser, distortion, compression, hard limiting, etc...
CEP also has great automation, and rea;-time effects.
While I don't think CEP is a perfect product, and only used N-Track a few times about 3 years ago, I don't think it intends to do all the things that CEP can. And so, you might want to consider it if YOU intend to do those things with your tunes...