If there were a single piece of advice I wish would have been given to me when starting out- it would have been to start with real live rock.
As a beginner 2 years ago dry rock seemed to be heavily marketed as the way to go. I thought I could do a fancy NSA aquascape and add some sump rock from the LFS and be good to go. This turned out to be a 2 year old disaster tank with periods good growth and crash cycles that seemed to be at the mercy of whatever biological life came in on new frags. This tank has since been stabilized with the addition of live rock from the gulf of mexico.
My experience tells me that dry rock is NOT beginner friendly. It does not guarantee problems, but leaves the door wide open for problems to come in and establish themselves (dinos, nuisance algae, microbiome imbalance).
Some reading on dry rock vs live rock if you're interested.
Aquabiomics Establish a healthy Microbiome