I have the Aquaboards installed on a Roadsmith HT1800.
The Plus:
1.I like the looks, gives it a more "substantial", finished look, IMHO. More of an aerodynamic look to the sides of the trike. Cool....
2.Very functional as far as keeping your feet dry(er) when riding in the rain. When riding the trike home from the dealer the first time, I ran into some heavy rain (about 90 miles worth), my feet stayed dry, maybe a bit of mist. I was amazed that my pants were not soaked from the knee down! I didn't even wear the Toggs pants after that. They work! (I had no wind wings or a front fender extension installed at the time, either.)
3.The wife also likes them!
Minus:
1.Have to work around them if doing maintenance (oil, etc). On my RS, I can loosen the front bolts and drop them down slightly to get access to the cowl bolts.
Also easier if the front end is up higher. I plan my maintenance jobs batched together.
2.My trike was pre-owned, and the left side (closer to oncoming traffic?) seems to have more paint dings. Not a design problem, IMHO.
3.I had a Kuryakyn Heel/Toe shifter installed and they had to make a small cutout in the Aquaboard for the heel part to work. It is not really noticeable unless you look for it.
4.As I am inseam disadvantaged, I can't put my feet down, but hey, it's a trike!
Although working around them is a PIA at times, I'll live with it as I think their function and looks definitely counter-act the minuses.
I'd say a definite YES!