If you're curious as to what it looks like in action in current content, here's a video of me healing
Hellfire Assault using the healer profile. I made just a few minor aesthetic tweaks to Grid, Bartender, and positions for DBM. I also switched out the nameplates to TidyPlates, but the RealUI stock nameplates are just as good. If you PvP,
here is a vid of the UI in action in arena. I pretty much exclusively use the healer profile since I really only glance at my action bars for CD's, pay more attention to my party, and have less mouse travel time to cast things at party members. I tried ElvUI and switched to RealUI maybe 3 or 4 years ago, and have been madly in love with it ever since!