FWIW I reached out to Marina on getting the 9983106 Rough Pre-Filter insert + 9991467-R4 Ultra Fine Pleat Filter upgrade. Margaret said to try the stock E30 Fine filter but if I still want to upgrade to reach out to her and I can get the rough/ultra for a pretty nice discount off list.Your E30 is the same robot as mine. But the Triton PS Plus (S300+ aka T.O.M.) mine came with both fine (leaf) and extra fine baskets. You can buy the extra fine plates on Amazon. You can also buy an extra internal leaf basket for use with the extra fine plates.
T.O.M. has a different control unit which is WiFi/Bluetooth, has 2 cleaning cycles (2 hour and 1 hour bottom only) and allows 7 day a week programming on your phone.
If I had to do it over again, I would probably go with an S200 (or equal) and use the "Automation Mode" and hardwire it into my Pool Automation system cleaner relay for "Programming".
If I had to do it all over again I'd have loved to have gotten the Warrior