Excellent! Those connectors take a special crimper. You don't have to buy one, you could use some needle nose pliers to bend the tabs over though, but definitely solder them! I do have the crimper for them, but I still solder them always. The crimper runs about $35 from Mac Tools, but I would bet you can find them cheaper somewhere. They are called an "open barrel crimp tool" or "open barrel contact crimp tool". I've had mine since the early 90's.
