Leslie's is my goto pool supplier but they are wrong-headed about this. Once the iPhone 6 came out who ever wants to buy the iPhone 4? Or even the 5. I liked what I saw with the new S300i - and discovered with irritation that my local Leslie's store can't order it. I wound up ordering it from another local pool supplier.
Very expensive, and only a two year warranty, so I paid for it with a card that adds a year to the warranty. BTW, it is certain that Maytronics will not honor the warranty when purchased online. This is a very strange position to take in the age of mobile computing. Anyhow, I expect it to arrive this week. I'll post a YouTube video when I get it and another after a month or two of use.