Erm... they're quite easy once you get the hang of it. The battery side is the female bullet which is big enough to just stand up on a sturdy surface. You can well up some solder in it and push the wire right down and hold it there. Don't even need anything special to hold it.

The male side needs something to hold it. The instructions recommend drilling a hole in a piece of wood and using that. Again after that it's really easy to fill it up with some solder and put the wire in.

Overall i would say definitely easier than deans. You don't even need heat shrink. Traxxas i think would be easier if i could understand exactly how to get them right.

I think traxxas better IMHO. You don't need heat shrink if everything is the right length. You don't need to slip the plastic over first so you can't forget or put it on wrong. They're easier to connect/disconnect.

I think these are for when you really really need 200a continuous and don't have as many options.