Bests & Worsts Reviews from Amazon

I've owned an inground pool for the last 10+ years. Over time, I've tried many different pool cleaning products. Suction side cleaners, Kreepy krawly, battery powered vacuums, etc. Each of them had their own limitations and caused more frustration than they were worth. Over the past few years, I've been manually cleaning with a battery powered vacuum. And this meant the pool was never 100% clean. My neighbor had a robotic pool cleaner about 8 years ago, but I was skeptical from buying because his kept getting tangled in its own cord. After reading some reviews, I thought I'd give the Dolphin Nautilus a try. It was simply a miracle. After dropping it in the pool, you just walk away, and it does its job with no fuss. I leave mine in the pool all the time (except when shocking). The timer is set to run every day for a 2 hour cycle. The pool is crystal clean all the time. No more nagging from the wife to clean the pool. The nautilus has a cool buoy holding the cord upright, so it NEVER tangles. I'm attaching a video of the Nautilus in action. I dropped it in the pool right after opening. As you can see there is a lot of debris. The nautilus cleaned up everything like a champ. The filter bucket is easy to clean. The only (small) gripe I have is that the cycle time is preset (about 2 hours). For pool openings, the robot needs to run for longer. So I had to go outside every few hours and reset it. But now after opening, the 2 hour cycle is perfect for daily maintenance. Would suggest to also buy a small pool box to cover the voltage converter, controller and extension cord. The instructions say to not use an extension cord. I bought a heavy gauge outdoor extension cord from Home Depot and it works fine. Mine is connected to an outdoor rated electrical junction box all the time. The robot stays in the pool and is set for a daily cycle. This can be adjusted to every 2 days or every 3 days depending on need. I also bought the ultrafine filter set. But I didn't really need it. Most of the debris that I get is larger, and gets picked up fine from the normal filter. I also have a DE filter which captures more fine particulate. So you might consider trying out the normal filter before shelling out the extra money for an ultrafine filter. The more expensive versions of this robot have other features: caddy, longer cord, bluetooth, etc. I thought about all of this and decided against. Those other features are nice, but I really didn't need them. Turns out the Dolphin nautilus is perfect for my needs. Don't be like me and wait 10 years to buy something like this. It was worth every penny, and more than paid for itself. I bought this with my own money and received no incentives from the manufacturer to write this review. EDIT (Aug 2020): Nearing the end of my second season with this robotic pool cleaner. It still works great. The color on the plastic has faded due to sun/chlorine exposure. The rubber tracks are still good. This morning I noticed that the nautilus had problems moving, and would get stuck. After watching some youtube videos, I realized that something might have jammed the ball bearings or the impeller. It was easy to take apart. I found a wad of hair in the impeller blade. After removing it, everything worked wonderfully again. Apart from this, no major problems with this robotic cleaner. Would still definitely recommend.