Equivalent to S200?

[Zamsaf]

Hello, I want to purchase a robot from amazon similar to the s200. I want to get it from amazon because they allow me to pay in installments and I can also add on the extra 3 year warranty. What robot on amazon would be most similar to the s200?

Is this any good

DOLPHIN Advantage Automatic Robotic Pool Cleaner, Compact and Versatile Cleaning, Ideal for In-ground Swimming Pools up to 33 Feet Amazon.com : DOLPHIN Advantage Automatic Robotic Pool Cleaner, Compact and Versatile Cleaning, Ideal for In-ground Swimming Pools up to 33 Feet : Garden & Outdoor

 

[Flying Tivo]

I think the discovery is closer to the S200, the advantage only has one scrubber.

 

[Oly]

No side vents to push it along the water/tile line like the s200 and s300.