Dennis,
You bring up some valid points.
I'll try to find the YouTube video of a aquarist that has a 7 ft or longer tank, and even though he's getting great flow, he's buying another, and you might also. I'm sure if I had a tank longer thank than my 6ft 125g, I'd expect to buy two.
I also was in a store and the MP-60 was loud, but even though their prices have come down because of the grye, I still think I would buy the grye. I believe all of their products are over priced.
Quality with any product is very important to me !
With just my wife's 29g BioCube, I tried the Cadlights PLS-50 and the Tunze nano 9001, and I was not,.....impressed !
So I bought the Aquamax HOB skimmer and I'm extremely,.........impressed !
Like you, easy Cleaning is also important, the Cadlights inner reaction chamber is inaccessible to clean, so it's black and can't see in, and the micro-bubbles are terrible !
JUNK !
The Aquamax has no,........bubbles.
Anyway, I hate buying products that do not live up to the advertising hype, so that's why I'm doing so much evaluating, with not the company, but realtime aquarist's.
Like I mentioned, I'll look for that video and paste it here for you.
Kevin