I don't have any experience with that one specifically even though I run a supplement company. It's a pineapple (stem) extract. If you did want to try it, consider using Thorne from the bigger brands if they have it. Most of the stuff out there is fake garbage in general.
Discussion
What is the benefit of taking that over actual pineapples?
Fom an extract perspective you would essentially be isolating specific active compounds, perhaps flavonoids of some type, I'm not familiar with the species. That is typically how a lot of the research is done on certain plants; you find and isolate some active compounds and then run trials to see what potential benefits they provide. You then produce a standardized extract to have a specific amount of those compounds, and typically in higher amounts than would natural present in the raw material.
Many extracts include the raw plant material too, so you can often get all the nutrients from extracts too. Medicinal mushrooms are a good example of this. You would have to consume a lot of mushrooms to get the same actives as you do from an extract. It is also broken down through extraction which can make it easier or possible to absorb. When you boil a herbal tea, you effectively make an extract too.