i was hesitant to purchase this product because I wasn't sure if it WOULD be worth the investment. However after using it on multiple projects, I can confidently say that it is a game changer. Thanks to my knowledge gained in practice, I can say with certainty that this tool is incredibly accurate and easy to use .It has saved me so much time and hassle when it comes to alignment tasks. The only downside is the price, but for industrial and scientific use, it's definitely worth it..