While conventional wood beams can look nice, they are cumbersome because they are heavy and can be hard to get into position to install. So that means a lot of work for you and other people who are installing them. The overall experience can be difficult and unpleasant. Moisture can be a big issue since that can make the beams prone to cracking over time, which is dangerous and will need immediate repairs or replacement.
Box wood beams are more lightweight, which makes the whole installation process much easier since they can be carried and moved around more easily and can be custom made to fit any ceiling. Your home will look fantastic after you get these beams set up. Overall, box wood beams are an excellent investment.