Some have also said that the speed bonus has, when combined with weapons that give a speed reduction, been an improvement in using those weapons.

I think though the set is more or less meant to flesh out the offerings of the biome based on a player's style. Seems like they're trying to offer 2 sets (heavy / light) per biome currently.

So if the set doesn't match your playstyle, then it may not be of merit to you.

I'd say getting it at least gives you something to do and who knows, it may have merit later in development of the game.