Yes, Anya Mine (Flymo) works very well. I like it in spite of a few minuses. Not having to think about grtass-cutting is very liberating.
Pros - It can be programmed to work on whichever days of the week and whichever hours you want, even at night if you like, or in the rain (though too much of that is not very good for the grass) Once it is set up you don't need to do anything. It has adjustable cutting heights. The cuttings are so small that it just drops them as mulch, so no collecting them up. It is fascinating to watch it criss-crossing the grass, doing random turns when it reaches the boundaries so that it doesn't have a predictable path. It cuts evenly, little and often, so the grass always looks OK.
Cons - It has to be set up. This involves plugging in a connection to the charging station, which is fixed at the edge of the grass, then laying a boundary wire right round the lawn a few inches in from the edge of the grass, either pegged down flat or buried in a slot a few inches deep, then addig another wire across the centre of the lawn from the charging station to the far side and joining it to the boundary wire. This takes a bit of effort, and (at least with the Flymo) you install it yourself, or get someone to do it. The power line to mine goes through a hole drilled through the wall into the cellar, where there is an indoor power point, but you might have to have an external power point added. You don't get stripes across the lawn from a regular path.
At first, I pegged down the boundary wire, but some pesky animal chewed through it at several points so i had to start again. It was probably the family of the vole/shrew/fieldmouse whose little burrow I found in the grass! Apparently they like the plastic covering. I then cut a slot with a lawn edger to bury the wire in.