Hi
I have used a similar pool cleaner, EASYKLEEN, and it was superb to use. You don´t have to connect to the watercirculation, just connect to 230VAC outlet and it will transform a 12V voltage to the cleaner.
Drop it down it the pool, it scan of the pool bottom automaticly. It stops when it is finished. After that you have a clean pool. The dirt is collected inside the cleaner. Takes appr 2.5h to run the program, just relax and take a beer or two meanwhile.
It also crawl up appr. 0.5m on the wall side. I have a pool with sandwall and it crawls up also above it.
Work to at least 10X4m poolsize.
You can find it here:
http://www.svenskpoolservice.se//ronson