I guess I am robot challenged.
The Z5 didn't work out because it was way too rough on my pool and I sprouted a lot of holes in my liner. Maytronics replaced my Z5 with the s300i. I got it last fall and used it perhaps four times. It really seemed to do a great job and I LOVED it. No holes, much nicer to my liner etc. Now after using this thing several times this spring a few things I have noticed.
More than once I have come out to find it tipped over on its side. It falls off the sides of my pool and shuts off.
It goes side wise around the deep end of my pool about half way up. it spends very little time in the deep end and never gets one side of my pool.
I have to manually brush my entire deep end because it does such a poor job.
I really like so many things about this robot vs the Z5 but some things are really disappointing.
I have tried every setting and manipulation possible to get it to pay more attention to the deep end. Pump on, pump off dropping it directly in the deep end, driving it into the deep end etc.