For the most part, yes my acros are colorful all the time. With the exception of new additions, which can take days to months to return to their true colors. Occasionally one coral will get a problem and lose color...recent examples of problems that caused color loss for me were an acro crab living in a pocillopora, and another sps of mine is being shaded by another acro that had grown large. These are isolated incidents, not widespread loss of color. For the most part, at a minimum 90% of my corals are colorful 100% of the time
I have a thread I created today in this forum with a video of my tank. It looks like this every day, I just keep the glass clean to enjoy it.
I voted 80% because I did have troubles in the beginning of keeping sps before I really got things stable.