Well, one problem that I seem to have had was the smb.conf was not set up properly. Once I got those settings fixed, things do seem better.
It's still not acting like I was expecting, but that's likely a problem with my expectations and not with SSSD. I suspect I just need to read more about the cache and get some more fine tuning done.
For what it's worth, I was not able to compile the latest stable version (1.12.0). I got the following error:
src/providers/ad/ad_gpo_child.c: In function ‘ad_gpo_parse_security_cse_buffer’:
src/providers/ad/ad_gpo_child.c:301:5: error: implicit declaration of function ‘ini_config_file_from_mem’ [-Werror=implicit-function-declaration]
Since I really need to just run whatever version is in the CentOS repo, I didn't spend too much time trying to solve that problem. But, I'm happy to file a bug report or anything else that might be helpful if this is a problem with more than just my system.
Thanks,
Peter