Yes, I tried DOPR and it was the one with the longest alkyl chain in 4-alkyl-2,5-dimetoxyamphetamines. Collecting memories from trips with 2C-D vs. DOM, 2C-E vs. DOET, and 2C-P vs. DOPR, I came to a conclusion that the longer the chain was, the more difference was between the phenethylamine and the amphetamine analog (not essentially in some concrete aspect). I'm not fond of long-lasting psychedelics but I can take it if this isn't heavy on body once in a while. DOPR isn't only long-acting but also heavy on body. So definitely it wasn't one of favorites despite strong psychedelic effects. And the other thing is everyone should know what to expect and when after taking anything because otherwise I think waiting until something happens being unsure when it's going to happen can only make you anxious. And with DOPR it doesn't mean anything good.
I have found a way around the long duration compounds, somehow 15-30mg mirtazapine fully cancels any trip. All the other things people try to take like seroquel didn’t really work good for psychedelics (seroquel does work to cancel stimulants tho. It seems to be able to cancel DOC and everything else at just 15mg. Great to have in the stash

