We have a Bosch, not sure which, it doesn't connect to our phones.
It's great to be able to just push a button and set it off, mowing was always a job that kept getting put off till the grass was too long, then it took ages.
We have an odd shaped lawn, so ther are a couple of tight corners it can only get at from certain angles. It's not a huge problem, as it changes the angle each time you run it so will come back to those bits another time. It's more of a pain at the begining or end of the year when we're not running it that often.
Where your gass meets paving the mower can have one wheel up on the slabs and now right to the edge, however this only works if the two are level. We have clay soil which has settled a bit too low in one corner, so the mower can't manage that bit. It moves off to find the guide wire again a bit further along.
Where the grass I'd close to a walk or edge of a flower bed you can't get the mower right up to the edge, so you'll still need sheers or a strimmer for those bits.
In the last few months ours has developed a bit of an issue, sometimes it doesn't recognise when it's fully charged, it will go back to base to recharge but then never come back out for the second half. Turn of and on again has always fixed it, but it's a bit irritating, it wasn't cheep. DH uploaded new firmware a couple of weeks back, so hope that's sorted it.
We got a cheep £20 push mower to do the tiny path at the front if the house, as we weren't too keen on leaving it out there unattended.