It was the first rangefinder that I bought for myself at the Portland Golf Show this year. Very easy to use, but it stopped working after used a few times, I contacted the customer service immediately. I returned the defected one and received a new one within 2 weeks. I still give the product a "Five Stars" because it is light, easy to use and the yardage was pretty accurate compared with my husband's expensive one and a "Five Stars" to the friendly customer service staff.