I recently started working at the newly opened Runcorn store and all I can say so far is that I really enjoy it. The fellow staff members I've met so far are all friendly enough and even the managers are nice. Even though it's a zero hour contract, it's still an enjoyable job as depending on how much effort you put into working, you can earn your commission. I sold 5 bags for life and one magazine just on my first day so really it's up to you to earn.
If you don't have major commitments such as rent, bills, etc. then this job would be great.