the database function is superb, the edit function is excellent also. B&H You Tube has several hours of excellent LR5 tutorials

Maybe even more exciting - Topazlab has photoFXLab which is a plugin that can operate within LR. It offers layer masks and layer blending without having to go to photoshop. If you want to push the boat out Topaz has a number of additional plugins that really extend the editing functions of LR and again - all without Photoshop