That's why I said I bought the Q2 when it first came out, so they probably had to work the kinks out. For example, when they first released, the bubble plates would fly off constantly because they're only held on with a snug fit. It would've been better if that screw on top of the bubble plate actually screwed into the top of the pump to hold it on. And those bubble plates (diffuser) are to reduce turbulence to help the bubbles go straight up. They don't make the bubbles smaller. Well thought out, just not executed well at first.
But the shipping, I wasn't talking about AquaMaxx shipping to MD. I was talking about them shipping it to the customer for free after a big sale. Last Black Friday sale I impulsively bought a Q3 for my 180. When I spoke to MD on the phone to return it, the guy told me that it cost them $120 to ship it from CA to NY because the warehouse over boxed it. But I returned it because when I opened it, the pump was loosely dangling in the body and the body was all jacked up from the pump smashing against it all the way across the country. The rep told me they were working with AquaMaxx to package the skimmers better. But to sell the skimmer half off and spend that much to ship it to me tells you how much they're marked up. And that markup I mentioned earlier wasn't for what MD pays, it was what a retailer pays FROM MD for the skimmer (I have a friend that has a wholesale account with MD). So if a regular retailer pays that little, imagine what MD pays. If something costs that little, it's because of cheap build quality and materials. The design may be good, but the build quality is terrible compared to a similarly priced Vertex skimmer.
Like I said, hopefully they addressed most of the issues by customer feedback. That's probably why they helped me out so much, because I got the Q2 months after it came out with most of the shortcomings. But that's usually what happens when you buy a new product right away. I would avoid their skimmers based on my own experience and what I've seen, as well as feedback from other retailers about leaky seams.
But I would buy one of their reactors, just not another skimmer. It's a crap shoot. I know their hang-on skimmers are some of the best performing ones for smaller tanks.