I’ve used this filling machine a few times in my small scale skincare lab and it’s worked great for my purposes. The instructions are basic so I did some trial batches to get familiar, but it’s overall a simple machine that’s not difficult to use. For example, I disassembled everything possible for cleaning and sanitizing before/after use which is crucial to get right in a lab environment but there’s not assembly or parts included instructions waking you through these details.
You also will have a bit of waste if you’re filling cream or higher viscosity products but not necessarily a flaw of this item, waste would exist in any filling method.
Setting the filling level also takes some trial and error but for the price and the scale I’m at currently this is saving me time and making it possible to quickly and cleanly bottle products which I couldn’t accomplish at speed or scale by hand.