Ok, I'm joining the owner's club, my M500 should be here after my thanksgiving trip.
Since I'm returning the Premier I just got and getting an M500, here are my reasons as delta features over the premier:
* Split brush for tighter turns (though not sure how much diff this makes)
* 3rd brush in center
* Top access to filters
* Cycle options (premier ONLY had instant start or every 1/2/3 days and had to be restarted each week)
* Remote options (premier remote only added manual direction, and quick cycle)
* MyDolphin app
* Remote and caddy INCLUDED for $1450, whereas is addons for premier, total becomes about $1300 anyway
Feature I'm giving up going from Premier->M500:
* Big leaf bag option
I saw earlier someone asking about where to buy this thing. You can only pick it up in store, OR get through an authorized dealer/servicer. The locations that came up in the maytronics search here in northern california, only 1 near me was a brick and mortar store, and they only stock the S300i. M500 would be special order for $1799 and I could pick it up. 2 other guys I talked to were only a PO Box as they were pool service guys, but are authorized distributors. I got 2 quotes for the unit shipped TO MY DOOR, one for $1530 and one for $1450. Obviously went with the $1450 as he was less AND closer to my house should I need repair/service.
I had a question on the filters to owners. Since the pleated micro filters get less suction through but finer particles, has anyone tried a "hybrid" setup with their cartridge by putting mesh on one side of the cartridge and micro on the other? So each cartridge has a 1 mesh + 1 micro. I'm thinking this may allow greater suction, and still the mesh side trap SOME fine particles, even if not all.