Acacia is OK. And that's the problem. They're not as great as other places in Frederick, and they are pretty uneven: on some days food is good, real good, some day it isn't good at all.
I've had to send steak back a couple of times because they don't get the concept of medium rare.
If you go, stick to fish: they seem to do better with fish and seafood in general than steak/pork/fowl.
There are much better places to have a meal in Frederick in the same price range, most notably The Tasting Room, Firestone's and the excellent Volt which is run by Bryan Voltaggio from Top Chef: Las Vegas.