we are thinking of using SW Dover White (flat) on all the walls in our small open concept house to unify them; I like the slightly creamy undertones, however, cannot decide on a color for the trim. I am thinking maybe SW Alabaster in semi gloss. Anyone have any experience with the best trim to use with SW Dover White as the wall color? House does not get a lot of natural light.

Well, Missy........you already know the mantra.....you can do anything you want, and you should do what works best in your own home for your own lifestyle. I leave my toaster and my coffeemaker and my knife block on my very small kitchen counters, even though decorating rules state very clearly that these things should be put away for beauty. I need my coffee, to reach for a knife, (to kill the rats in my kitchen!) and DH only cooks toast, so he needs that toast-cooker out! But there are quite a few paints that clean up quite nicely in lesser sheens than semigloss. I have satin on my bathroom walls and really would rather even have eggshell. Love the flatter finish and would rather cope with the cleaning. I don't think you have to do the semi to get a good wall finish. I even like the Ace Sensations Matte flat finish, it is now in my kitchen and wipes off nicely. Of course, I have a real backsplash so don't have to worry too much, but over by my trash can, there can be some cleanup issues where I think my DD probably throws coffee grounds against the wall! Keep in mind that you have a mess on a flat finish. Even upgrading your finish just a little will relieve that. And you are using mascara. Good for you! I think all is forgiven in pursuit of facial beauty! Red

Personally, I’d stick with matte on the ceiling because ceilings tend to have more irregularities and the matte will hide them. A shinier finish will show all the irregularities.

I suspect it is the Milesi 2k poly in 20 "sheen." It is one of the more popular sheens for Milesi. ETA: matching sheen can be rougher than color actually. BM Advance tends to be on the glossy side, so even their satin will be a 30 or more. While Sherwin William's waterborne tends to be on the flatter side. It is difficult to dictate a sheen match in a limited product line like BM Advance. Your best bet might be to consider various products or brands.