Most people here in the statews don't really think they are junk. Many of the people who are using nicer consoles don't like the Topaz because it is not nearly as nice as what they are using. Same goes for the rest of the Soundtracs line. In the live industry, Soundtracs did not fair so well. Their consoles had constant and consistent issues. The newer Soundtracs digital DIGICO D5 is out on a few tours, but there are more redily available more powerful and better sounding digital consoles out now and as a result, the D5's have dropped like a tank in price.
Basically, Sontracs never really put out a console that compared wewll with things like SSL, Neve, API and some of the other large format consoles. It lacked big time in the autopmation department, and in some ways was depleted sonically compared to those other consoles. For a smaller setup though, and a console on a budget, Sountracs actually has a good reputation. FYI, I am not sure being made in the UK has a lot to do with Soundtrac's lake of popularity. I think primarily it was based on the other things on the market at the time. In the live industry, the SOundtracs were pretty quickly shunned because they had no longevity. They broke down after just a few shows.