I'll be going for the pic layout in #22.The least friendly is the astroturf, disgusting plastic stuff that will need washing regularly with detergents, and kills everything underneath it. At some point it will have to be binned and replaced when it has rotted in the sun.
Please dont use it!
We have a very small battery mower I bought Linsey for our wedding anniversary, it was to mow between her raised growing crates and the green house and shed, extremely light and easily manoeuvrable for her. I of course do the all the hard work on the lawn tractorOur electric mowers are small but if they were rechargeable they'd be batteries to make them heavier & even more unwieldy on the uneven ground.