I think that when it comes to rating the bonuses, it's not about their quantity or amount, but mostly about the probability of their withdrawal. On the website, under "What bonuses do I usually take?" describes how the bonuses are rated. It's mostly about wagering, so it looks like Roobet doesn't have that attractive.
If you read his review regarding welcome bonus & promotions, you will understand why he rated roobet in such low rating.
The good thing about his review is he is indeed using his own money to test the site and check the features.
But didn't expect that roobet will have relatively low rating as compared to others.
But anyway, it is up to the player's priorities how he look at casinos and how important those features are to him.
Of course everyone should research each casino individually. I am aware that we cannot fully rely on such a review. They are helpful due to the fact that there are a lot of casinos on the market and thanks to such a list we can find the ones we like faster. As for the Roobet, everything is very fine and the case of bonuses, as I wrote, is an individual matter.
Some are really worth to read and something which you do know that theres something wrong on that.