Pros
If you are young it is a good foot in the door job. It was for me. Union benifits were nice. Most of my co workers were helpful and nice. I learned a lot and helped me come out of my shy shell a bit.
Cons
Management will end up screwing you over big time. Didn't matter if i worked there 2 and a half years and being called one of the best courtesy clerks. I was working a ton of 8 hour shifts in a row for over a week. Money was nice but it got soooo overwelming after a while. And i was called up to the office and explained its been overwelming and my anxeity was getting bad. So they asked if i wanted a shorter week next week so i agreed. But after that week they gave me a 4 hour week a 8 hr week and then took me off the schedule entirely for one week. Union helped and they gave me my hours back for a short time and agreed to give me 20 hrs min. That never happend. There was favoritism going on, new employees getting more hours then people who clearly have more seniority. It took a toll on me mentally with hour cuts and rent i needed to pay on top of personal issues i was at a very low point. The safeway i worked at was in the middle of a redneck gettoy neighborhood so we had a ton of people doing drugs, steeling, and rude customers.