I have a bunch of iZotope products, but that's mainly because they came in a bundle. None of them are bad. OK, maybe Trash is, a little. I like my distortion to sound like it originated in the real world, a la Saturn or a good amp sim. That doesn't make Trash bad, not really. Just not right for me.
Lots of folks love Nectar but I just don't get it, even though I keep trying. Tried it again today, in fact. And once again, meh. Maybe its fans are using it for the harmony generator, a feature I have no use for.
Then there's Alloy. Oddly, Alloy doesn't seem to get much buzz, but I love it and find it to be very useful.
In the end there's really only one must-have iZotope product, and that's Ozone Advanced. Gotta go for the Advanced package because then you get all the Ozone modules as standalone plugins. And, of course, Insight, which
looks very impressive. Visitors see that and think I must really know what I'm doing. ;)
I scored all these goodies for, IIRC, 200 bucks or so. It was a sale, plus a discount for previous customers. I already had Ozone Standard (been an Ozone fan since version 2) so I qualified for the discount. They called it the creative bundle, or something like that. I'm pretty sure they're still selling that bundle, so maybe your Nectar will qualify you for a discount.