'Will this (synthetic or faux leather) bag flake?'
'Synthetic leather no good.''
Well, I shall tell you the truth, Synthetic leather definitely will flake over time, BUT there different grades of synthetic leather in the market. Just like calf leather, we have top-grained and second layered calf leather. Top grained calf leather usually high durability and higher cost. Likewise in the market, we have synthetic leather which has a life-span of 20 years and those which lasts for few months.
At MBL, our synthetic leather bags have an average life span of 2 - 4 years, some even lasted me 5 years.
Not only the type of material used is essential, how you care for your bags during usage is critical as well. In short,
Life-span of a bag = Material Used + Care
Keep your bag in a dust bag if you know you are not going to use for the next few weeks. Before keeping it in a dust bag, use a dry clean cloth and brisk sweep the dirt off. (If possible, apply with a small portion of bag cleaner cream and gently rub the leather in circular motion). It would be a bonus if you stuff your bag to keep it in shape. Use butter paper and original silica gel given to you
Alternate or air your bag every 2 - 3 weeks. This is to prevent moulding to occur.