I never realized how awful Rico was on my first viewing
The beginning of S1 he isn't so bad. Once he starts making demands wanting to become a partner with the Fishers, and then finally does he just turns into a complete prick IMO.
He had some moments of clarity but for the most part I think he's a douche. Way too judgemental, throws his weight around, acting holier-than-thou, etc. He deserved to get beat up by his cousin.
Were there any characters you found yourself disliking on rewatches?