about to buy epcos Sikorel.. users of Sikorel pls post their opinions

Epcos Sikorel caps about to buy these I got MOQ of 50 units from the manufac but would buy few from online stores to test them since they are freaky expensive please tell me are they worth enough? I see many people talking about it rating as one of the top two caps you can get.

How is the performance in bass,mid,highs..