The Hue Tap is good if you want to use just a few scenes, and only need on/off action (that is, you can't used the Tap to adjust the brightness etc.).
The Hue switches can be linked to the specific bulbs/scenes you want. A second option, is much more functional. If you link the switch to the Hue Bridge 2.0 first and then select the scenes, you can use the Tap switch for on/off functionality, and adjust the brightness using he smart phone app.