Well it's been almost 1 yr with 828 cansister so here's my update.
So far nothing has broken on it. It is still extremely quiet , even with me using it a Co2 reactor. My flow is still good though I also am running a 9 watt coralife turbotwist UVS.
Here is my maintenance schedule I use for it.
1) Once a month( a few times been 6 weeks) new floss, rinse other media in tank water.
2) Every three months clean impellor, wipe canister interior out and run brush through tubing.
3) Once this year take apart impellor housing and thorough brush out with bottle brush.
Is this about average for cansisters?
I did have to buy new output tubing as my coralife did not like thicker walled jebo tubing.( although it did kink a lot less easier then the eheim tubing I used to replace it with)
Btw after running my coralife UVS for 9 months now it still has accumalted so much as a spec of anything inside. The quartz sleeve looks as clean as the day I got it.
So overall I would say I am very happy with this filter especially considering a similiar eheim would hace cost me in vancouver 3x what I paid which allowed me to get my 119.00 CAD turbotwist UVS.