As the title suggests, nothing for a professional, but for a one-time installation action sufficiently. The 90 ° stop angle is incorrect. You have to keep the board in the correct position manually. Go times - but several rooms I did not want to relocate it. Then you should buy a little better quality itself. On average there was nothing to complain about except the misaligned angle to create. But the cut end always under the wall bar disappears in principle not care! Absolutely OK for the price.