I have one Partridge Penedesenca. I thought I'd bought 4 from a straight run but I must have been in a chick buying frenzy and only bought two because one turned out to be a roo and I no longer have that one. None of the others are Penedesencas so maybe it's early onset Alzheimer's because I swear I bought four!
Anyway, the one I have is very aloof. She keeps her distance from me and doesn't seem to be very flock orientated. She tends to just do her own thing and not pay much attention to what the others are up to. She's not aggressive at all, just aloof and suspicious.
Apparently they are fairly rare from what I've read. Mine does lay beautiful deep coppery eggs; a bit deeper in color than my welsummers.
Here's a link that might help:
https://www.backyardchickens.com/threads/chicken-breed-focus-penedesenca.1140342/
I don't think I personally would buy them again only because she is so aloof and I can tell that if I had to actually catch her for any reason, we'd probably both be traumatized! Maybe it's just her personality but I have read they tend to do their own thing.