Run one on my 90gal fairly heavily stocked CA/SA community tank along with an AC110. I rinse out the media every 3 months or so and even by that time the flow rates don't seem to weaken too much. Easy to disassemble, easy to clean, easy to reassemble. Takes me about 10 minutes in total. Easy to prime as well. I have had no problems with mine and it has run flawlessly for >2 years...