If your body tolerates Prami without sides, its a pretty impressive compound with the ability to lower prolactin as well as increase GH production. See Comparison of pramipexole with and without domperidone co-administration on alertness, autonomic, and endocrine functions in healthy volunteers for more. Anecdotal benefits include increased libido and stronger than normal orgasm, but thats most likely due to the control of prolactin.
Caber is generally tolerated well by most people insofar as sides go, and it is very effective at lowering prolactin. The studies that link caber to causing heart valve leakage are with excessively high dosages and not something I'd lose sleep over.
I get virtually no sides with prami, its easier to obtain in my experience, and lets me sleep through the night while on tren... as much as 10 hours. I wake up feeling fantastic and it poses no risk to kidney or liver function (not that caber does, I'm unfamiliar with its hepa/renal toxicity)... they both get the job done for prolactin control, but with the slight boost in GH production makes Prami a no brainer in my particular case. That said, if you take it and vomit through the night, don't blame me, blame your physiology.