My Fx5s are still going strong. When I sometimes have to ask places for parts, I've been told that I must be giving them the wrong model number because they've only heard of the Fx4 and Fx6
My personal favourites are the Fluval FX range, years mine have lasted. Simple it set up and the baskets are great to change and install media. I used 2 FX6 on my 7 foot tank and they keep it crystal. I have just got a FX4 to install on my Jewel rio 240
