Actualy not at all, not for our purpose..

Depends how you look at them, i wont say utherly useless because plants grow under this light. But looking at it from aesthetical perspective the colors look worse than awfull. For growing some letuce in a dark corner of the house they might just do fine, used above a display piece it looks like plants in the red light district display cabin. Than you are at risk of Dirty Old man ringing at your door asking the price and who's in.
If you want to enjoy the beauty of the plants and its true colors as a display you need to give them a as close as possible Natural White light.
In the LED industry colors given in K value still do not have a standard there for it's often specified as for example this led gives you between 5000K and 6500K as natural white. Thus with the use of LED lights specified in K color it still is trail and error to see if you like what you see since you still have a 1500K surprice factor comming with the package.
There for the higher end quality led light manufacturers specify this data with a CRI number. Color Rendition Index.. This number ranges up to 100, the closer to CRI 100 adchieves the most natural true color display.
Under the assumption you are not color blind..
