Bought a Pact XP and it has given me a lot of trouble. Sent it in for service twice before I bought a CED. Setup the CED and the Pact at the same range on the same day and the CED proceeded to capture every single one of the more than 500 rounds fired over it. The Pact didn't register a single round despite trying every remedy ever recommended. New battery, switching out sensors, angled towards the sun, away from the sun, 90 degrees to vertical, with diffusers, without diffusers, switched out lenses, and on and on.
I sent a letter to the president of Pact asking him to fix it once and for all and haven't heard back since. I've considered sending it back and telling them to keep it but I'm afraid they'd pawn it off on some other person and make them suffer like I have. Your mileage may vary but I won't consider them for any product until they fix it or at least reply to my letter like a professional companny would. I hear all these great things, but that hasn't been my experience and they aren't helping by ignoring me.
The CED is great, not as nicely featured as the PACT, but it has worked for me 100% of the time whether it was cloudy, full sun, morning, and afternoon. The download software and USB connection are another plus, its CSV output is better than Pact's in my opinion. You won't be sorry for buying it.