Its a good height for the window it wll eventually go near, and seems sturdy. Just assembled it this morning and my large cat has yet to investigate. 
Directions were in German(!), but illustrations were simple. All parts were there...however, it was awkward to assemble. USE THE LONG END OF THE ALLEN WRENCH TO LINE UP SCREW HOLES! I learned that. It helps in most cases, but attaching the cubbies to the platforms is frustrating still.
Hope it lasts, as I never want to put another one together!