I went with level 3 as Hailey tends to solve things very quickly. Here are our thoughts:
-This is the first puzzle that Hailey has not figured out right away, in fact she hasn't totally figured it out yet. Because it is so challenging to keep her and Phod motivated we put special treats like hot dogs in it.
-It is easy to clean.
-The compartments are larger and you can put a lot of different treats in it (unlike some of our other puzzles that can only hold small treats or kibble).
-As it is a puzzle it doesn't get dragged around our floor as much and isn't as noisy.
-The dogs will share this. There are so many different parts, they can each be working on a different part.
-It holds a lot of treats.
-It takes a while to do (which is good and bad).
|Another chewed piece|
|Hailey chewed the rope for pulling|
-The Man says he thinks the plugs are too hard to take out (Lady say this is the point and doesn't find them too hard)
-It may be too challenging for some dogs [Phod often gets frustrated and quits].
The biggest drawback for me, is I have to directly supervise them with it. It isn't something I can give them to keep busy while I am cooking or if we had people over. However, it is nice to have something that works Hailey's brain so hard!
Disclaimer: I independently purchased this toy and am sharing my opinions/experience. The company is not aware I am doing this.