I've learned a lot hanging around here. Spent a lot too:)
My first attempt to 'master' was with T-RackS Classic. I think it was $79 on sale. Those were the first third party plugins I bought. Had I been more experienced I may have been able to get the sound and quality I was after, but after discussing it here and elsewhere on the web, I decided to go for Ozone 5. Bam! For a novice, the presets alone were fantastic.
Now, I've watched videos of Bobby Owsinski using T-RackS and I have no doubt a professional can get professional results, but Ozone was what I needed at the time.
Having said that, I've migrated away from Ozone 5 towards a plugin mastering chain that includes bus compressors, mastering eq's and maximizers from the usual vendors. In part because it's fun to experiment and acquire new toys, and because I was having trouble getting the low-end right in Ozone. My latest project using that chain is in the Song Forum.
Uh, having said that, the deal to get Ozone 6/7 Adv was just too tempting. And with Ozone 7 Adv standalone, it's basically IK's functionality except that you can use other vst's in the mastering chain too. I guess with IK adding plugins to their suite all the time like that Master EQ and the Stealth Limiter, perhaps it's just a matter of preference with neither being 'better' than the other?