Hi Jan, we have the TK700STi and are very satisfied with it. However, we haven't used it with 4K yet. We are still waiting for the PS5. The brightness is very good in the evening, but we have to darken it a bit during the day. We use it every day. Gaming and films are fun! 🙂 With BenQ, the universal ceiling mount is also practical. Before, our old beamer was on the table. We can't say anything about the other beamer. Hope this helps you a bit. Best regards!