Oh the effects were good, and I knew as well this is a tv show so there will be limitations (the limitations here being he wouldn't stay in a cgi form for very long, or he would just change his hands e.t.c). Which is why I'm saying his presence would have been better suited to the big screen.
Still they did a good job with him. And to be honest he's a much more intimidating foe for AOS than he would be to Hulk or Iron Man.