Firstly, forget about trustpilot and review sites like that in general. Don't believe what it says as it can very easily be fake. Secondly, what do you mean with 'stolen customers'? I feel like you are using google translate or something like that. Perhaps you are referring to complaints by 12 customers who lost funds/had them stolen. Again, that doesn't mean much. Most problems that lead to loss of funds are a result of user mistakes so I wouldn't worry about it.
Although it is widely believed that users' responsibility led to these thefts, but a single mistake could wipe me out.
That's true for any hardware wallet. So, think twice before you do something you might later regret. If in doubt, ask questions before, not before making a mistake.