Hot Tub Deams Event

Well, I love the idea of a hot tub, I don't like the chances. Honestly, the wait between trying to get more ducks is just nuts. There's no reason for that.. send them to get 18 ducks for 4 hours and then wait almost 6 hours to go again.. very unbalanced and needs fi be fixed. There should be no wait time.. I understand sending only two sims on the task. I'm ok with that. But once I'm done I should be able to resend them and not have to wait. 18 ducks? It's not even worth it especially when you get re-peats of the same crap and when you have an item limit.. this event is just pure frustrating in my eyes. I'm not going to give them a hard time because this is the first event since the world wide release and maybe with the next one they will change things around and make more fun and a bit less irritating and frustrating.