I made quite a few when I first got the pack. Spent hours setting up hotels, day care, work places and so on only to realise that I couldn't use them.
- The staff doesn't count as employees, so they can't go into rooms with doors locked employees only.
- Eat food = cooking, so the stove and refrigerator was always blocked by the guest meaning cooking staff couldn't access the things they needed to cook (which brings us back to number 1).
- Staff kept leaving their duties to do other things, like start work out classes or go swimming in the pool even if that was not their task. They then didn't change back to their uniforms.
- My sims family members kept showing up as staff in spite of having perfectly good jobs (again staff does not equal employees and therefore it's apparently not a job).
- Restrictions that staff had to be local to the world wasn't enforced by the game, even when I made sure there were townies with the proper skillset and fullfilled every requirement.
- When trying to hold a wedding at a hotel I realised that custom venues can't host events.
Right now I've disabled AA as I play a pack challenge, and if/when I enable it again I guess I will try again, but no, I was definitely not impressed with how they worked. Not worth the time they take to set up. I suppose if they're used exactly the way the game makers envisioned and you don't mind only meeting the same people over and over they might work?