I worked at PSA. I left for Compass. Both are good companies and I liked the guys at PSA. The procedures at PSA are drastically more complicated than compass. I think as a whole compass runs a tighter ship but PSA offers great incentives for recruitment and the crew bases aren't too shabby. Getting your own room paid for by the company goes a long ways, but getting hired to delta's standard with a 12 month upgrade works well too.