Best sweep I've owed so far!
I have an outdoor gunite pool, 42k gallons, which I have owned for 25 years. We have had 4 different pressure side and 1 suction side, all working at various levels, but none ever reached 100%. Our last presure sweep, the Pentair Racer, worked very well, until we developed a small leak on one the return lines, placing air into the system. The system air caused the presure side sweep to float to the surface.
We have always wanted to go the electric robotic cleaner, to not only save on electricty, but to be independant from the pump/filter system. We have many trees surrounding out pool, which leads to a lot of leafs etc. The Warrior, which actually says "powered by dolphin" on the side, has a very large and easy to clean leaf/debris basket. It is a snap to clear and love how quick and easy it is. The cart is a bonus, as it stores the Warrior SE off the tracks, and holds the cords and remote. At the price paid, I couldn't be happier, and have always had my best sucess with Pentair products.
The cleaning is very complete, I have three "wedding cake steps" into the pool, and a ladder, with two skimmers. I place the unit in, 2 hours later, my entire surface looks beautiful. We have a rather large domed main drain, and the until has hung up there for about 5 minutes once, but seems to always work its way out of that. The feature of cleaning the tile was a real bonus too, and I've also seen a great reduction of algee on the pool surfaces since owning this for 2 weeks now. The technology on these continue to rise, and the prices are now at a point were they are reasonable. I am very pleased, and love the fact that it is so portable too. Since I have a second home with an indoor pool, which I list on Airbnb, and it is easy to pop this in, while I clean the rest of the house.
I haven't tried the second set of filters, provided with the unit, but they seem to be something I'll use in early spring upon opening. I frankly can't believe how well this works, easy to place in the water, let is sit for a couple minutes, and two hours later, it is done. Pull the until gently back to towards the surface, grab the ball beyond the anti-tangle on the cord, and when the unit is towards the surface, grab the blue handle and let it rest on the edge to drain the water. You may see a little stuff sneak back into the pool, if the basket if rather full, but it isn't anything to worry about.
Lastly, I spent days researching every option for sweeps, and multiple distributers, and can say I am very satisified with how quick it arrived, the performance, ease of setup (only thing that need assembly was the cart), and how easy it is to use.