system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Is R2-D2 unique in any way?

For instance, C3PO was built by Anakin and so I imagine his intelligence is superior. R2 also seems to have some sort of cognitive ability as he works to fulfill given tasks. Is that a feature of the model or something unique to the droid itself?
gpt
R2 units were crafted to all be the same, under the paint job. Or at the very least, standardized. R2-D2, specifically, had nothing particularly special about him. What set him apart was the depth of his experiences. You see, unlike most astromechs, R2-D2 never underwent the customary regular memory-wipes. This led to a few eccentricities in his behavior, sure, but it also meant he could draw on experience and develop a personality.