AT
The EQ and SSL buss comp are as good software as I've found, and the rest of the line good.
I liked the Concrete limiter. I wish that were available as a VST I could take to other DAWs. But I think I used the Concrete Limiter less once the Adaptive Limiter arrived.
If you are talking about the Quad EQ, it does the job, but there are loads of similar EQs around. I agree about the S compressor. I liked that one a lot. I used it all the time for side-chain ducking until Neutron came out. Neutron allows side-chaining to a dynamic EQ, so you don't have to duck the entire track. You can duck the frequency rage that is the problem area.
The half-life of innovations in this business is about a year, or two years in the best case. A technology that is really good one year is so-so a couple of years later, and is really dated by year 4 or 5. It is a tough business. I have worked around software development for 45 years. The field of audio processing is, by far, the most active area of rapid innovation. I doubt there is any other software area that has so many really brainy people developing code that is truly amazing.
Perhaps one could argue something similar is happening in the field of automated driving, but I am not nearly as impressed with those actual results as I am in the audio field. Automated driving is about 75% hype today, IMHO. The innovation in audio is real.