Well, the cheapest ones they made had terrible clamps. But the new clamps are good. And their top clamps are excellent.
The best thing I did on this Comet was install the T167 clamps. This thing is 8 years old now and no problems(except the original bases were a bit crap). I have about €500 into it.
Are they as smooth as the top machines? No, but neither do they cost $2-6K. And the prices are about to go higher...on everything. Well, for Americans, anyways

One thing we might forget is most of these machines are made by the same companies in China. Many of them use the same parts.
Still, since Murica is starting trade wars, I may buy the Tomcat sooner than later since they have stock in Austria right now.