As a small commercial brass processor and authorized reseller the Rollsizer products, I would say that the statement above is accurate depending on what you are trying to process.
Having bent / broke more pins / rods than I care to count from running the machine at or above its limitations, I have a few tips and tricks to share
1) It is very critical that you get the brass sorted properly BEFORE it goes into the decapper. Trying to get the .22LR off from the pin, and out of the .32 that is nested in a 9, that is nested in a 40, that is nested in a 45 is shall we say difficult.
2) It will run a bit better if it has already been dry tumbled in walnut or corn cob media. While you "CAN" run really dirty brass through it, that ends up getting on the linear guides for the push rod or the guide for the FW Arms Die
3) I can run fastest (As in full speed on the dial) on brass with large primers because they typically have large flash holes. Where I get in trouble is with that Norma brass crap on 9mm. This stuff will stick on the decapping pin every, single time and then jam up the whole machine. Usually looks like this -
So to counter that I worked with a local machine shop in North Carolina to develop a modified wear plate that we use when we run 9mm -
This is essentially a shell holder that works for 9mm only that is holding the case down so that when the norma brass gets stuck on the pin that it will have something holding it down as the machine is on its upstroke. Note - This design is not perfect, it causes a separate issue that we are still working on, but it helps significantly.
4) You will break pins constantly if you run the machine too hard, and if it starts to get bent but doesn't break, it will bend or warp the rod from FW Arms next. Thankfully you can order both pins and rods directly from FW arms without paying the international fees.
Overall this product is really cool and has helped us automate / increase our processing significantly, but as another poster said, you cannot leave it unattended, and it does require a bit of TLC to keep it running optimally.