I respect TC's products and have used them successfully for over 25 years. The Brickwall HD is a great concept and for me, the tactile and effortless hardware integration is very valuable, but there are three issues with this product as it currently stands, 1. The lack in Q.C. My unit was faulty and I have understood that several other users have experienced the same issue. 2. The hardware controller is too much like a toy. The buttons have no sense of authority and the display (when it actually works) have a lot of bleed and is therefore hard to read. The whole unit is also simply too small. 3. The actual limiter I found close to unusable as a mastering limiter on 90% of the material I've tried it on. Sonically it's nice and warm and the soft clipping feature handles the audio nicely when used in moderation, but the long release times on the limiter means that even at 1dB gain reduction you can hear it pumping. The algorithms used supposedly share genetics with the System 6000, but to my ears that is a many many branches away on the family tree. It is of course possible that future updates will improve this plugin and thus provide users with an adequate tool that can compete with likes of Ozone and PSP, but right now, it's a gimmick and have therefore no place in a professional studio.