Transitions..... Medications for Behavioral Symptoms

Does anyone have experience with medications commonly used to treat behavioral and psychiatric symptoms of Alzheimer's disease? Our home health nurse recommended (and Dr. prescribed) starting my husband on a very low dose of quetiapine (Seroquel) for agitation and depression. I think I understand why we are moving to the antipsychotic meds -- He is depressed as well as becoming more and more anxious, agitated and upset. He is unaware of how his behavior changes throughout the day - most alert when he first rises leading to lots of confusion/anxiety from 4 pm to 8 pm. Also, when he finally settles in bed he does not sleep more than 2 hours at a time during the night without having night sweats requiring a complete change of clothes.

Regardless of the effectiveness of the medications, I'm facing some pretty tough issues and decisions. I can try to get more in home care but I am also questioning my original plan for home care. Is staying in our home the best for my husband or would he feel more secure and stable in a memory care setting (as well as get more social interaction that may help the depression) -- I have not yet visited any facilities near our home but will be doing so in the next few weeks. I know that any transition will be hard on him - whether it is bringing more people here into our home or moving to a memory care facility ..... appreciate any and all perspectives.