I bought the DAA Primer-Pro Collator a couple of months ago as loading primer tubes was driving me insane. I read the good and the bad reviews and figured I would take a chance as it seamed the problems were associated with not cleaning the devise and early learning curves. Since I have started using it, I have had mostly no issues. Yes, I get a primer here and there that is upside down, but this is only a couple every thousand primers. I have not had a problem loading Winchester or CCI small primers and I have not cleaned the unit yet. I have around 3 or 4k primers though it now.
If you only load 100 cases at a time, then it doesn't work very quickly and always leaves around 10 primers at the end that will not feed. If you drop 500 primers in the bowl at first, it has ran great until the last few where it will slow down to the point of not loading the final few primers.
Now that I have it, I don't think I will go back to the other solutions. Overall I'm happy with the unit, even if it is pricey. Let's face it though, everything in this hobby is expensive these days.