Best there is
Milbar makes the best wire twisters around. Yeah, they're a little pricey, but they'll last you for years. If you use a tool daily, you don't want to have to buy a new one every couple of months. I bought these because of the reversing feature, always handy when you're safetying a series of fasteners. I still have a set of the regular 11" ones I have had since the '60s, and they work fine, thank you.
ProsQuality and reliability
ConsI wonder - could they make them with a cushion grip?