Like website is very slow. If you set filters, it takes about 30 sec until the filtered page is loaded. Has nothing to do with my laptop - other websites are a lot faster :-).
I think that the overview of the offered videos could be improved. On the one hand in terms of speed (see above), but also in terms of overview. When searching for videos, it would also help if there was more detail about what the video offers (e.g. sequences for the legs, lower back, etc.).
This is a very motivating review :-)