This milk raised an orphaned kitten from the day of its birth until it was 5 weeks old!
It never nursed from its mother, yet it managed to gain weight normally with feedings every 2 hours at first and then gradually less frequently (see the chart and general advice from Hannah Shaw).

The powder dissolves easily in lukewarm to warm but not hot water, and it has a very pleasant cookie-vanilla scent and a sweet-salty taste that the animal really liked. It needed 1 package of 400g and 1/2 package of 200g.

I didn't fill the measuring spoon all the way to the top, but just below the rim. 2 "not very full" spoonfuls well mixed in 50ml of lukewarm water (filtered or bottled or previously boiled for safety, since orphaned kittens that did not nurse colostrum do not have immunity against bacteria).
Indeed, the measuring spoon is confusing because it indicates ml while the instructions refer to grams.

The dissolved milk stayed in the fridge for only 2-3 feedings and any leftovers were thrown away for safety.

The leftover milk powder was used very diluted with water in the wet food that started at 5 weeks (first half a teaspoon of diluted wet food in the bottle with the milk, and gradually increasing the wet food and decreasing/diluting the milk until it learned to eat from a shallow bowl).

The large package contained a bottle, a cleaning brush, instructions (it probably needs more frequent feedings), and 2 nipples, of which only the thin one is suitable for kittens. We needed 2 nipples, as it tore the first one when it got its first teeth. We had to get a whole second package, as we couldn't find just nipples, possibly they are available at another online store.

Minus 1 star because the kitten's stools were quite watery and shapeless.
However, the veterinarian who examined her at 3 weeks because we were worried, without having suggested the milk to us, said that the animal is healthy and the stools are normal, without diarrhea or dehydration. So the product, at least in some cases like ours, works with proper use and without underlying health issues in the kittens.

It was the milk that was recommended to us at the store, (the other one they had, from the same company, had even worse reviews online.)

It causes diarrhea in small kittens and intestinal problems. The dosimeter is in ml while the instructions are in gr. Unfortunately, it is widely available and is the most common milk substitute. I would never recommend it to anyone.

The worst thing ever. I lost 3 kittens (that I found on the street as newborns) because of this milk. Supposedly it is good, but the kittens didn't grow and in the end, instead of looking like 6 weeks old, they looked like 3. The reason we lost them? Malnutrition, even though I fed them every 3-4 hours. And I ask now, what kind of milk is this that even when you feed the kitten properly, it doesn't develop physically and eventually dies? Seriously, don't buy it, get something more expensive, it's not even worth giving it to me for free.

This milk is terrible!!!!! I switched to another slightly more expensive one and the diarrhea that the kitten had for 15 days stopped, and if I didn't know how to make a solution, I would have lost it. DO NOT BUY IT!!! It causes incredible diarrhea.

Very good milk, easy and my babies love it very much. Also, if you see your baby being lethargic, put a little sugar in the milk because I didn't know that babies have tantrums

Very nutritious milk, I consider it the best. Tried on many baby kittens and other sick ones. They love it. It smells like cookies, easy to prepare. It is available with a bottle, necessary!!! I highly recommend it.