Dear Colin, i prefer them for the speed i can hoe an allotment, especially with the smaller one when it comes to hoeing something like an onion bed, you can get very close to things without doing damage, especially on the back stroke.
But i do like to use some old hoes at one of the big houses i work at, they have a feel all of their own.
The Pull push hoes i have are from the Wolf inter-changeable range. I must say, i thought they might be weak at the connecting joint, but i have had them over ten years now and they have done a huge amount of work, but they are still in good condition.
The other good point about these inter-changeable tools is that it saves on space, so stops me getting pulled over with my barrow for being over-loaded.

Kind Regards, Old Herbaceous.
There's no fool like an old fool.