D,
I have been using robot cleaners for about 15 years. I love them. That is not to say they are for everyone.
Maytronics makes the same basic robot under different names for different sales channels. The Active 20, Warrior SE, and the S200 are all the same basic robot with different colors and cosmetic changes. There may be more that I am not aware of.
I have three pools and one in each pool. They work well for me, but like everything, nothing is perfect.
No pool cleaner will clean the steps nor a shallow sun deck.
They tend to only last about 5 years. My last robot, a Dolphin Premier, lasted 7 years, but it was twice the price for an Active 20.
I am not a fan of all the Bells and Whistles that you can get. They just add cost to the robot and most likely you will end up not using them.
What kind of cleaner do you have now?
Thanks,
Jim R.