This is the best value for the money I have gotten in a long time. Ozone Elements by itself would be worth the price. It does a great job of applying light-to-moderate compression and limiting on the mix bus. For my material, it meets my settings for true peak limit and integrated LUFS level within less than 0.1dB and the sound is virtually free of artifacts.
I also am now using Nectar Elements and Neutron Elements from this bundle on vocal tracks. These are a nice addition to my tool set.
At first, there was some confusion about getting the correct serial numbers for product activation. KVR Audio got in touch with the people at iZotope and they responded promptly and resolved the problem.