I've been using mine for the last few days and the only annoyance is it slips off my shoulder. If I criss-cross the straps it helps, but eventually they uncross and slip again. Not a huge deal since it is quite comfortable on the forearm, but it's something to consider.
Also, in regards to breaking straps, some women have a tendency to either overstuff their bags or grab them forcefully by the handles to pick them up, placing strain on the leather and chain. I only carry the essentials and always try to be gentle when picking up my bags.