Solid

The interface is intuitive and the application is stable. Barcode scanning works very well (autofocus helps when available on newer devices). The scanner negates the need for their scanner-only app if one uses their desktop software. The online sync helps keep PC + mobile + web completely unified. Some may find this solution pricey compared with competitor options, but from my experiments, their suites are the reference by which all others should be measured.

Audio Otaku about CLZ Music CD / Vinyl database, v2.5.2