I understand that for the password to be recovered, the device has to be shipped to one of keychainX's office which for alot of people will be off-country, being able to handle this kind of work load and commanding enough trust from for them to ship a device containing the bitcoin and others is also on way to know that keychainX is a trust worthy company and even dealing with the fact that shipping takes time, keychainX still makes sure to recover the wallet password and get it to you on time, now I understand why there are so many reviews on how fast the company works.
I dont know how they are able to do this, the thing about this era is that trust is hard to earn, especially when huge amount is involved. Most persons are ready to let the bitcoins go, instead of someone getting access to it later and take away the funds. It's not easy handling over a wallet with big stash of crypto, such things still exist, I will be surprised. Right now, we can only rely on the positive reviews which perhaps makes a lot more sense when you consider the risk people are taking and the satisfaction they get in return from the reviews.