Trying to decide between an S300i/Active 30i and the Dolphin M4/M400. I have a lot of leaves as well as silt that gets in my pool. I have a fiberglass pool with seats, shelf, & steps so can be challenging for robots. I have owned an Aquabot Turbo T (it cleaned the best but lasted 4 years & I have no local Aquabot dealers/service so makes that brand difficult) and a Watertech Blue Diamond (only lasted 2 seasons & didnt clean as well as the Turbo T).
I like the 3 yr warranty on the M400 along with the 3 rd scrubbing brush. However, I am concerned that the dual cartridges may fill quickly and be a bit of a nuisance. Any experience with the M400 or M500 and leaf capacity? Dealers locally all recommend the M400 over the S series, but I think this is most likely due to the fact the S series has not been around as long.
I really like the large top basket design of the S/Active series but not sure of their reliability since they are much newer design.
I would appreciate opinions & experience on this