I have a Robomow RC304 Pro.
This is the second one, the first one I had was the same model, but a very early version. It had several weak areas that broke within 2 years (warranty) and was a hassle, so the dealer exchanged it for a later version where these had been addressed by the manufacturer, and this one has been working fine for about 4 years now.
If you have iOS, the app should be fine. It’s a bit poor on Android with frequent Bluetooth connection issues (depending on phone I guess)
My lawn shape is rather simple (two rectangular areas with a connection strip) but wire setup was not. Some areas (entry to the narrow connection strip and around the base station) where the wire distances and configuration must be just right for it to work, and this is not obvious the first time you set it up, and then to find out what the cause is if the mower gets confused.
I had to route the wire around the base station in a way that is not in the manual but the dealer instructed me. (The routing from the manual made the mower collide with the base station and occasionally it rode up onto the station and got stuck)
I made it work eventually but would recommend to have a dealer set it up instead. (When I bought it, there was no dealer near me, so was not an option). You can bury the wire a few cm deep, but it is not really necessary, it disappears on its own after some time. If you do want to bury it, do this only after you have ensured that everything is working 100%. (On my first attempt I was too eager and buried it right away, because “how hard can it be” - a mistake)
Mine is rated for 200 sqm or so, but I have 60. It is better to have some headroom, this gives you shorter mowing times and if the battery gets weaker over time it does not have to return home all the time.
The minimum width for the connection strip overall is 1 meter, I think 70cm between wires. But as mine is an older model, don’t know if it is the same for newer ones.
Mine has a metal blade, that’s cool as one new blade per year is enough. But if you have kids or small animals you may want to consider the plastic versions.
I liked the metal as it can also deal with stronger weeds than grass, and I have an area outside the wire that I mowed only twice a year by remote control. However, they had to remove the remote mowing option due to security regulations in a later app update, now you can remote control it only for traveling, mowing is then turned off. So now borrowing the neighbor’s regular mower for that.
I leave it out all year, it is set to mow on automatic schedule. But in winter I move it to the basement, as is recommended. It is recommended to be sent to service in winter, which I do every 2 years, costs 70 euro or so, plus 30 postage