I bought it as an alternative to The Glue, which I initially used on the Master buss, tho' only to give the mixes a bit of weight pre mastering, then used it on pretty much everything. The same with the PBC - I seem to be using it on everything now. I did an A/B of a mix where I duplicated The Glue settings with the PBC. What I used to think was mellowness tying the mix together seems like a lack of clarity - the UAD compressor is a lot better.