This thing looks nice, and definitely packs a lot of functionality in. I just don't know that I'm particularly clamoring for another SSL bus compressor, and especially one that's this fiddly and targeting a mastering context. I like the classic SSL bus compressors precisely because they're simple - I keep mine set, mix into it, and basically never touch it, aside from occasionally auditioning the fastest release time vs the auto release. The parallel compression and THD options are interesting, but I'd mostly want that on e.g. a drum bus where I've already got that stuff (and a bit more) on my API 2500+ where I'm driving a much cooler sounding (IMO) gain stage however I want.