As a product, it is VERY good and gives you crazy energy during training. As for results, it might be the best by far. 10/10
Now the big problem is in the choice of powder - capsules.
The capsules are not cost-effective at all, but their intake is very easy. The reason is that 1 capsule has 1g of citrulline, so you need at least 3 capsules to get even the minimum recommended dose of 3g. This means it lasts you max for 30 days since it has 90 capsules inside.
On the other hand, the powder is 300g, so with a difference of about 3-4€, you have a product for 100 days!!! The downside is that the powder does not dissolve at all. The unflavored one is bitter, and the flavors are extremely intense.
It's a rock and a hard place, so -2 stars purely for the taste and price issues, respectively.
The choice is yours.

It gives you energy during workouts and some bloating, but the taste is unbearable. I have, of course, taken unflavoured; maybe something with flavor would be better

Very good for pre-workout. It causes a kind of constriction of the vessels so that more blood can flow, and it helps you a lot during training. I got the unflavored one and it is quite bitter unfortunately.. it goes down hard.

Everything is fine, but I find the taste EXCESSIVELY strong. I got lime, and while I like sour flavors, this is so much that it makes it difficult for me

Awesome and a must-have for people who feel tightness in their knees (or elbows), especially when we have leg workouts.