no one can answer that for you as no one here will be receiving the card you just ordered.
any of the flash kits can fail in days or weeks, the acekard is no different. there is a high potential for contact issues, which you should be aware of. there are also a large batch of ak2i 1:1 clones going around, so be sure to check your anti-counterfeit code as soon as it arrives. if it says your code has been checked then you have a clone.
most people never experience any issues. others have issues from day 1. so get it, use it, and then ask how to fix problems. there is no point is subjecting yourself to unnecessary worry.
-another world