I have the low end Klein's with the blue grips. Works just fine. I think they were about 30 bucks.
I remember years ago when I could order tools through my company at a discount and got the Klein yellow handle type with the crimp. They were supposed to be good for tie wire (steel) and copper. Iron workers use Kleins too. For tying rebar. They just strip off the grips, heat and bend over one of the handles near the end, so they can pull up on the tie wire while twisting. I had them fix mine that way when I was working slab jobs.
The thing I wonder about is the break in period. Like when they are new and hard to open. WD 40 is no help.
Any tricks to loosen them up? I know working with them is the answer, but it takes some time.