Helion has an article/videos that tears Tokamak and ITER a new one. I was momentarily hopeful about their dual reactor solution, but now I’ve seen videos complaining about their design. One main complaint being that they’re actually using a very old technique, and the another being that you can’t just choose not to generate neutrons from a fusion reaction, as they seem to be claiming for the power generating reactors (they admit the fuel generating reaction is going to generate a huge neutron flux, but they plan to use separate facilities for those).

So basically Helion defected and hopes that partial honesty distracts from their other problems.