Work/Life Balance doesn't exist, you are expected to work a minimum of 10 hours per day and rarely get to use your breaks. Salary is good for retail, however in England you are extremely underpaid compared to what Primark pay in southern Ireland, Europe & USA in real terms. No in house benefits and culture is more of a do as I say not as I do. Ability to help stores abroad for secondments dependent on performance and the store's willingness to send you (some stores refuse to release managers others will gladly do so).
Salary for England, Job Security, ability to help abroad
no work/life balance, no day to day benefits, very little advancement in UK