I have a Carrack but haven't been able to find a Carrack to Carrack w/ C8X upgrade in forever. This gave me an option and even though I was highly skeptical, they came through in about 12 hours (up to 24 hours is the claim). It's a little pricey, but for CCUs you can't easily find anymore, this is a legit method and the use of PayPal made me feel much better about it all.
Recieved my upgrade in about an hour so super fast service. No issues upgrading the ship. Overall a quick and positive experience. I reserve the right to change my review in the future if any account issue happen. But great job and thank you.