I have no problems with my Dolphin A30i. Bluetooth works fine on IOS. It also does a great job cleaning the pool and picking up debris that you don't see.
Maytronic robots will work pretty much in the same randomness as the Polaris but my S300i doesn't have any problem climbing my 6.5ft deep end. I will get a large amounts of sand.
The Active 30i and the S300i are identical in features. Only difference is the color and a slight difference in look. I have an Active 30i and I love it. I bought mine locally because I liked the convenience of taking it in and not shipping it in case it needs repair.
Here a couple of action...
I think you should try to find one of the S series models or the Active Series and I guarantee you won't be disappointed. I have an Active 30i and it has no problem picking up sand.
Just the on/off switch or the whole control panel will stay on after each cycle. I thought that is how mine worked. I will try leaving it longer before I turn it off to test.
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That is exactly what i'm doing now also. I'm going to leave it alone longer to see if it turns...
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Have you checked the above link. I put Valrico, FL and it appears it is around Tampa, FL. I saw one in Plant City, which looks to be about 9 miles away. There also some in Lakeland and Lutz, FL.
I have a Active 30i and I'm not sure if the control panel suppose to turn off after it completes its cycle. I'm not sure but I thought it did when I first purchased it back in April. Now it runs its cycle but the control panel stays lit and I have to manually turn it off.
The robot should not have any affect the time you run your pump, you should run your pump enough to clean the surface of your pool or to produce chlorine if you have an SWG.
The 2018 models do have a swivel. You are correct those 3 models are operationally identical. Only differences is colors and look. Why the Active 30i? Looks. lol. Mine has a swivel and it still tangles a bit but no big deal, for others they have no tangling.