I bought the medium azada and the azada fork from Get Digging. The medium azada was useful for breaking new ground, but I found it fairly heavy and so tiring to use. I have since bought a simple lightweight model (from a DIY store in Belgium, less than £10) which I am now using much more often than the one medium weight one. It's brilliant for general cultivation, breaking up hard lumps of clay, earthing up etc. The azada fork has been invaluable in digging up perennial weed roots (especially nettles) on uncultivated ground. But in the long run the lightweight one looks like the most useful tool! My Portuguese lottie neighbour has a similar tool, but his has a triangular pointed blade.