ANY internship experience and value always depends on the student as well as the professor. "Brand" names are less impressive than they used to be. Demonstrating what you have learned and how you do research is most important to future collaborations or positions. CRITICAL to success is a good alignment of any researcher's interests and the intern's! Promotion of student contributions and co-authorship are essential. This applies to ANY internship at any institution. One person's experience may not reflect another's as they are all unique. The BEST way to evaluate it is to see if you can find "graduates" - people who have interned there - and try to contact them directly to get their candid evaluation of the programs and results.