I suppose it is quite a pretty plant, but the flowers - usually pink, occasionally white - are rather small. The plant itself can reach fifty centimetres across but is a sprawling, untidy thing and this habit goes against it in horticultural terms. But above all it is the pungent smell that is the problem and some would rate it downright disagreeable.
Herb Robert.The flowers are quite pretty though rather small.
Roadside at Stefen Hill, Daventry. 15 June, 2017