Trying to figure out Maytronics robots is a challenge. They've got, apparently, models for specific pool stores, pool stores in general only, Internet only, and probably several lines I haven't figured out. Here are a couple of things I think make sense. Some of the cleaners have "exhaust" straight up (when the cleaner is horizontal). This seems like a good idea, as that helps hold the cleaner down on the bottom and helps hold it against a pool wall. Also some have the rotating handle/float that is vertical when the cleaner is horizontal but float 90 degrees to remain vertical when the cleaner is going up a side. Both of these features seem worthwhile, especially if side cleaning is important. There are also several filter options, some interchangeable, some not. Fine, ultra fine, etc. Lastly, as best I can tell only the M400 and M500 have a third brush--and unlike the front and rear brushes, does not turn in concert with the wheels/tracks. It turns faster, or maybe in the opposite direction (I forget which.) This also seems highly desirable, if you're hoping to reduce manual brushing frequency.
JT, I use the word "seems" a lot here, because I'm looking to replace my virtually worthless Pentair Kreepy Krauly Platinum pressure side cleaner (long name for a product that does so little other than make circles in the deep end of the pool--yes I've tried all the published fixes for that issue.) I see you're in Houston, so you might find, as I did, that not many people sell the M400/500. Those who do, so far seem to sell them at full list price--$1,399 and $1,599--and they're "in Houston" only in the broadest metro area sense of the term. Leslie's and Pinch a Penny both have their own named lines (none with the 3rd brush or top exhaust.) Can't find them online, as they're apparently for independent shops and pool builders only. Also, I'm hoping to find a dealer who is a warranty station. I've read some warranty nightmare stories for people needing warranty repairs on their Internet Maytronics (you pay shipping to Maytronics, then hope.) Speaking of warranties, there are Maytronics with 1, 2, and 3 year warranties. Also some are full, but most are limited.
Good luck with your search.
