1)paint over primer seems darker question. I believe it's because you haven't yet painted your walls and the dramatic difference is making you think it's dark. I wouldn't worry as once you've painted everything, it will look much better. The ceiling in my bedroom is painted the same color as the walls and looks lighter.

2)If the paint is wet, it will have a shine. Look at it tomorrow. Then, you'll know what kind of sheen it really has.

Once you've got everything painted and the furniture in, it will have a whole different look, anyway! :)

Thanks, Alex! You are right--in the morning, everything looked much better (this is usually the case with most things!). It looks pretty flat now--maybe a teeny bit satiny, but that is ok. Since it was my first textured ceiling, it makes sense that I wouldn't know what it would look like wet! The wall color goes on this weekend, and I feel confident that the colors will look "right" then!

Hi guys!
Yeah, paint changes a lot in a day! The final "look" of most colors takes a few days. Miniscule vapor releases can still occur days later.
The final look of your "sheen" may take more than a week, especially for the higher sheens.
Final "cure" takes about a month...to be considered a "washable" surface.
Thanks,'Faron

Faron -- I did not know this about paint color, but this is good news, since I put on the wall color over the weekend and I am having one of those "oh, no, it doesn't look like the smaple did" moments. At least, in daylight it is much brighter. In the evening, it looks like what I wanted! I will be patient and give it a good week to "settle down." In the meantime, it all came out pretty good. I used a trick I picked up on this site for cutting in the baseboards (used my taping knife). I experimented with a small foam brush for ceiling cut in--while it went faster than the blue tape, it is a bit uneven and I will need to go back and touch up. I do hate that but possibly this is better than drippy blue tape. Anyhow, thank you for the help.