echoofformless
Peat Advocate & Defender Of Snails
There is a difference between the normal handful of bad reviews that even the best products get, and there being a noticeable amount of bad reviews. The Cascade has a noticeable amount of bad reviews compared to the others. No reason not to always buy the best available and the best you can afford. Eheims and Renas are just as readily (if not more) available as Cascades, and the difference in cost is only a few dollars. In that respect it seems like the Cascade is just a waste of money.