Id have to say I have experienced the exact opposite, TS has been the best cage I have ever used and also the most popular with pretty much everyone I ride with. The first TS cage I bought about 5 years ago, has been used by someone else after me, and is still being used by another person after him. And that was their first design that has changed a lot and is even stronger after they added the cross bars.
Also I bought a cage for someone from them and they had a big accident, basically rode the bike through a fence at like 100km/h, one side of the TS cage ripped off the bike taking a big piece of the frame with it....Sounds bad but if you saw the crash something had to break, anyways the one side was so mangled I didnt expect TS to warranty it. I asked if they could sell me just one side, they refused and asked me to send in the whole cage. They sent back what looked like a completely new cage, Im not sure if they fixed it or just gave me a new one thats how good it was....
Then again a while ago my friend wanted to send in his cage, but they had already stopped making cages at that point. Even thought they were not making cages anymore, they still made him a new one and gave him a great price and all kinds of extra hardware and sliders etc...The lady that answers the phones and takes the orders has always been great to me, and Bruce makes good quality stuff
So as far as TS goes in my group of riders, everyone would take a TS over anything else on the market if they could find one...Even a used TS is better then most of the new cages...