I am a long-term pool robotic cleaner user, had been a loyal Dophine user for decades. However, I am not satisfied with my latest Dophine Triton, it only lasts for 1 year with light use. Then it can be powered on for about 5 seconds then power off. Sent for repair, worked for 1 month, then the same BS happened. I was surprised that Dolphin Nautilus CC Plus was still a top seller on Amazon and the price raised up from $600 something to $800 something now. WOW it must be the most valuable old-school technology robot ever. Really don't want to step back with a bigger price. There are some new Dophine over 1k, I don't think it is worth a try. Tried Aiper instead, the drive belt broke after two months. The good part is I can buy the drive belt to replace it, the bad thing is this particular part is not available now. So I really need to buy a new Pool Robotic Cleaner now, because I don't know when my last drive belt will break. I am open to any brands you have good experience with, please advise. Thank you in advance.