I haven't read the whole thread, but I would recommend going hob vs cannister. None of the cannister filters have any good surface agitation or skimming, which leaves with either super nasty film on the top of your water or having to add in a second surface skimmer. I rather get the tidal hob which has surface skimming.
edit: I had the sicce whale and it was pretty easy to clean, but still annoying. I ran it more like a media cannister instead of filtration due to the amount of work. I also hated the small surface skimmer I had to run