Would you put gutters and downs spouts on a shed style roof over a deck? It's rustic look with stained posted and open rafters.
Unless this is required by code, is purely a personal choice. The questions I'd ask would concern where the undirected water will go if left to just hit the ground. Will there be footings that are compromised if water is allowed to contunue to fall at their base?
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
B. Franklin 1759
Thanks Ron. I'm leaning towards the RainHandlers product. Seems like it would be sufficient for my needs without have ugly downspouts and gutters. I've got good drainage now as it is, so I should be good.