Just throwin my 2 cents in.
I run an older Eotech 553 on my MK18 SBR. It'll bang steel easily at 100 yards (actually farther) with both eyes open. I use it as a "go to" for playing with the steel gongs at the fall dessert shoots.
In all fairness, I haven't worked with any of the Romeo sights though. So I can't really give an honest comparison.
Congratulations on the new granddaughter Cliff. They're always pretty fun. I know the two of mine are fun to be around.
Hope everything stays good with her.