These lights have made a huge difference to how homely our house feels. Whether it's using subtle warm colours or full-on neon colours these are great. Just be sure to get the later generation (I think it's Gen 3) with the round, green "sticker" on the box as they have more brightness and range, particularly in the blue-green end of the spectrum.
The versatility of being able to fade them in at sunrise and sunset is great, along with geo-fencing. Once you get these set up you can also integrate them with heaps of other services by using the IFTTT service. You open up so many possibilities.
The only hurdle is the price. If you can get these on a sale, it's a no-brainer.