is the cr-75-p sim reader junk?


is the cr-75-p sim reader junk?
I was told there might be drivers and a "sim editor"? was a sakar /digital concepts device? but nobody has a install disc or copy of the app or drivers? I really like the size of this, but no way to test it? (tried mobiledit but suspect I am missing drivers)? was also sold as a digital concepts brand?