I own one and I have mixed feelings about it. The chronograph is a physically attractive unit and fairly well built. The printer is slow but not painfully slow and to be honest I never use it. The most attractive feature is that you can easily download your shots to the computer, however, you cannot download the calculated data (STDEV, HI/LO, etc...) The unit rarely misses shots and if it does, it is normally my fault for not placing the round properly. The menu is easy to navigate if you read the manual but it is still clunky. Deleteing shots is always questionable and you can lose an entire string if you try to delete the first shot (maybe this has been fixed in the new firmware but who knows, see below)
One draw back is that the serivce from Pact is, in my opinion, marginal. I had to send my unit back in for a firmware upgrade and it took almost 2 months to get it back. I sent a letter with some comments about the service/unit and didn't receive an answer or phone call. There is no page dedicated to firmware and software updates on their website meaning you have to call and ask them for news. There is no way of knowing what bugs the firmware fixes and if it is worth it to send it back. In addition, the download software was finally introduced 1 year after the chrony, which was very frustrating to me.
Would I buy it again? Probably not. The selling feature for me was the download capability and ballistic computer.