Overall, I would not recommend this game. It was obviously a port from a mobile app that was never completed and has since been abandoned. Anything that has a "coming soon" or any features that are missing are not going to be added/fixed. I would not have played for so long if I didn't want the achievements. After my file got lost I just "completed" the last two with a manager.

Pros:
Free - you don't need to pay to play
Simple - easy to learn, although the controls are annoying at best. Obviously touch-screen based
Cute - the music is nice and the pets are cute
Fluffs - there are multiple different animals / variations to choose from
Customization - you can change the color of most of the pets and objects in the game

Cons:
Not Idle - this game is very active until you have played to get all the auto machines
Cash Grab - I did say it was a mobile game port.... what where you expecting?
Ads - Once again it is a mobile game port.
Time Consuming - be prepared to be micro-managing everything
No interaction - the furniture is supposed to be intractable by your pets, from what I found only one actually is
Diamonds - while you can earn them in-game by doing the daily quests you need these to make the game actually idle
Sounds - Personally I find all the barking, meowing, and the sound of the coins/energy to be annoying. Be prepared to turn this off if you play

Basically while the game is free, don't waste your time. There are other much more fun actually idle games or pet management games that are better.
(also sorry for ruining 666 comments, this game just really bothers me and I needed a place to vent)