Being a massive friends fan, i had to buy the lego friends apartments and purchased the light kit from Game of bricks.
Ive installed quite a few light lits on my Lego kits and this one is absoloutely fantastic.
The sounds are fantastic, I would love to add more sounds, but thats a bit too technical for me and what they provide is excellent anyways.
I purchased the remote/sound version and i still find it amazing at what a few wires and some connector boards can achieve.
The online instructions were easy to follow and it took a couple of hours to install, but the end result is totally worth it.
I always purchase my light kits from Game of bricks due to the great quality of the kits they supply, fast delivery and their awesome and friendly customer service.
Always my first stop if i need light kits for my Lego.