Personally I think they look chavvy but that's just me.
As with any wheels, reps will suffer from cracks, buckles and dents more than the factory/genuine alloy - This is not to say it'll break the minute you take it on a bumpy road but it's something to be aware of.
Also the finish will be sh*te so needs waxing several times with a durable wheel wax, ideally a ceramic coating, or after a single winter it'll be laquer peel central.