Now that all the dominos are falling, GM, Ford, Rivian, Volvo, I would say that Tesla will quickly become the standard in North America, and CCS will go the way of the Dodo bird. So unless you have a short-term need like you get free charging, probably not worth it at this point.
I bought a knock-off one that worked well, made by EVBase. Was $89 on Amazon. Heavy, nice build quality, didn't get hot. That I used on a Road Trip where CCS at rest stops was about 10 cents cheaper per kWh compared to Supercharger.
But what a hassle it was. First problem was so may of the CCS were basically dead. So had to back up to charger, line things up, go to charger, DEAD. So pulled out again, backed into another, get out of car, DEAD. Then when I did back up into a working one, have to deal with the app, log in, doesn't recognize it, then disconnect and start again. Added bonus is having to hear my family in the car complaining to "stop being cheap and just use a working Supercharger"
Then go to Superchargers, pull up, plug in, done. Never saw a dead Supercharger.
Totally not worth the aggravation. I'll pay the 10 cents more on the rare occasion of roundtripping that I need DC fast charge. If I lived somewhere that had free DC fast charging with CCS, that would be a different story and I'd deal with the aggravation for free power. But for a dime a kWh, not worth it.
If you want to go knock-off, I can recommend EVBase. The adapter was great, it is just that the infrastructure for it in North America is poor, and it will only get worse as everyone moves to Tesla standard. Nobody will want to put money into maintaining the CCS fast chargers along the roadway. So they will get more broken down as time goes on.
I would also say that in the coming months, the knock off CCS adapters will be sub-$50 all day long. Because nobody will be buying them anymore now that standard will change to Tesla, and third parties that have warehouses full of them will start to unload them on Amazon and ebay.