I got a 2215 and I love it. Does a great job with bio filtration. What size tank is it on?
I found these filters have great bio and polishing yet some what lack in the flow department. They do best with a good mechanical power filter like the aqua clear series. I teamed mine up with an ac110 and my water is invisible 24/7 .
Also have a look at the longest lasting equipment sticky thread at the top of this sub forum. Lots of people have owned these and ran them continuously for decades