I have exactly the same one from the same company and in two separate containers. That is, a 3-liter bladder divided into two 1.5-liter ones. I have also reviewed that one.
So, let's talk about this one now.
Let me explain my reasoning.
I had bought the 1.5 + 1.5 liter bladder and put 1.5 liters of water with electrolytes in one and 1.5 liters of water in the other, but the electrolytes I need (I do enduro) are actually much more. I consume 1 liter of fluids per hour so I decided to get the same 3-liter one without a divider and add the appropriate amount of electrolytes.
The bladder is very good. I have fallen off the bike several times and landed on my back and it hasn't lost a drop.
I have other bladders but they are not like this one.
They are similar but this one is very good quality.
At first, with the first one, I was hesitant because of the price but I was very satisfied and so I got the single 3-liter one from the same brand.
Buy it with your eyes closed. You won't regret your money. It has been tested in tough situations and has performed very well.
If there was a 4-liter one, I would buy it.
So, an update: at the base of the hose that is on top of the bladder, mold has accumulated that cannot be cleaned. It's inside. Even though I clean and wash it (and the water hose with a long brush), that part can't be cleaned.
I am very satisfied because it has no leaks and is very durable but this is a big minus. Very big. It should be removable there so it can be cleaned.
For this reason, I removed 3 stars. It's a health issue.