Sad is VERY attractive imo, but I don't keep it in high-traffic tanks or tanks with a big current.
I have sand in my 20L red-claw crab tank, and I think the only reason it's been working so well is because I have a terrarium waterfall filter in it, and sand never gets in contact with the actual prop.
From previous experience, sand will slowly kill most filters. I once had sand in my turtle tank when they were just hatchlings, and within 3 months, that filter was shot bc the turtles kicked up a lot of sand that ended up jamming and ruining my motor.
But best of luck! It looks amazing if you can get the right set-up. It's really just a trial and error type of thing. If you have the time (and patience), and money to replace a filter here and there if it happens to get ruined, then I say go for it.